Electronic Transactions on Numerical Analysis (etna)

% ====================== SIAM.BST ================================ % 
% SIAM bibliography style (24-Jan-88 version)
%    numeric labels, alphabetic order, Mathematical Reviews abbreviations,
%    names in \sc, titles in italics, book titles mixed upper-lower and
%article
%    titles lowercase, commas separate all fields except before "notes".
%
%   History
%    1/30/86    (HWT)    Original version, by Howard Trickey.
%    6/15/87    (HWT)    Fix format.editors---Martin Costabel.
%    1/24/88    (OP&HWT) Updated for BibTeX version 0.99a, Oren Patashnik;
%            THIS `siam' VERSION DOES NOT WORK WITH BIBTEX 0.98i.
%
% Edits to 

% DSB: Added URL and status fields for ETNA
ENTRY
  { address
    author
    booktitle
    chapter
    edition
    editor
    howpublished
    institution
    journal
    key
    month
    note
    number
    organization
    pages
    papernumber
    publisher
    school
    series
    status
    title
    type
    url
    volume
    year
  }
  {}
  { label }

INTEGERS { output.state before.all mid.sentence after.block }

FUNCTION {init.state.consts}
{ #0 'before.all :=
  #1 'mid.sentence :=
  #2 'after.block :=
}

STRINGS { s t }

FUNCTION {output.nonnull}
{ 's :=
  output.state mid.sentence =
    { ", " * write$ }
    { output.state after.block =
    { add.period$ write$
      newline$
      "\newblock " write$
    }
    'write$
      if$
      mid.sentence 'output.state :=
    }
  if$
  s
}

FUNCTION {output}
{ duplicate$ empty$
    'pop$
    'output.nonnull
  if$
}

FUNCTION {output.check}
{ 't :=
  duplicate$ empty$
    { pop$ "empty " t * " in " * cite$ * warning$ }
    'output.nonnull
  if$
}

FUNCTION {output.bibitem}
{ newline$
  "\bibitem{" write$
  cite$ write$
  "}" write$
  newline$
  ""
  before.all 'output.state :=
}

FUNCTION {fin.entry}
{ add.period$
  write$
  newline$
}

FUNCTION {new.block}
{ output.state before.all =
    'skip$
    { after.block 'output.state := }
  if$
}

FUNCTION {not}
{   { #0 }
    { #1 }
  if$
}

FUNCTION {and}
{   'skip$
    { pop$ #0 }
  if$
}

FUNCTION {or}
{   { pop$ #1 }
    'skip$
  if$
}

FUNCTION {new.block.checka}
{ empty$
    'skip$
    'new.block
  if$
}

FUNCTION {field.or.null}
{ duplicate$ empty$
    { pop$ "" }
    'skip$
  if$
}

FUNCTION {emphasize}
{ duplicate$ empty$
    { pop$ "" }
    { "{\em " swap$ * "}" * }
  if$
}

FUNCTION {scapify}
{ duplicate$ empty$
    { pop$ "" }
    { "{\sc " swap$ * "}" * }
  if$
}

INTEGERS { nameptr namesleft numnames }

FUNCTION {format.names}
{ 's :=
  #1 'nameptr :=
  s num.names$ 'numnames :=
  numnames 'namesleft :=
    { namesleft #0 > }
    { s nameptr "{f.~}{vv~}{ll}{, jj}" format.name$ 't :=
      nameptr #1 >
    { namesleft #1 >
        { ", " * t * }
        { numnames #2 >
        { "," * }
        'skip$
          if$
          t "others" =
        { " et~al." * }
        { " and " * t * }
          if$
        }
      if$
    }
    't
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

STRINGS { last.authors }

FUNCTION {init.last.authors}
{ "" 'last.authors :=
}

FUNCTION {format.authors}
{ author empty$
    { "" 'last.authors :=
      ""
    }
    { author last.authors =
        { "\leavevmode\vrule height 2pt depth -1.6pt width 23pt" }
        { author format.names scapify }
      if$
      author 'last.authors :=
    }
  if$
}

FUNCTION {format.organization}
{ organization empty$
    { "" 'last.authors :=
      ""
    }
    { organization last.authors =
        { "\leavevmode\vrule height 2pt depth -1.6pt width 23pt" }
        { organization scapify }
      if$
      organization 'last.authors :=
    }
  if$
}

FUNCTION {format.editors}
{ editor empty$
    { "" 'last.authors :=
      ""
    }
    { editor last.authors =
        { "\leavevmode\vrule height 2pt depth -1.6pt width 23pt" }
    { editor format.names scapify }
      if$
      editor num.names$ #1 >
        { ", eds." * }
    { ", ed." * }
      if$
      editor 'last.authors :=
    }
  if$
}

FUNCTION {format.ineditors}
{ editor empty$
    { "" }
    { editor format.names
      editor num.names$ #1 >
    { ", eds." * }
    { ", ed." * }
      if$
    }
  if$
}

FUNCTION {format.title}
{ title empty$
    { "" }
    { title "t" change.case$ emphasize }
  if$
}

FUNCTION {n.dashify}
{ 't :=
  ""
    { t empty$ not }
    { t #1 #1 substring$ "-" =
    { t #1 #2 substring$ "--" = not
        { "--" *
          t #2 global.max$ substring$ 't :=
        }
        {   { t #1 #1 substring$ "-" = }
        { "-" *
          t #2 global.max$ substring$ 't :=
        }
          while$
        }
      if$
    }
    { t #1 #1 substring$ *
      t #2 global.max$ substring$ 't :=
    }
      if$
    }
  while$
}

FUNCTION {format.date}
{ year empty$
    { month empty$
    { "" }
    { "there's a month but no year in " cite$ * warning$
      month
    }
      if$
    }
    { month empty$
    'year
    { month " " * year * }
      if$
    }
  if$
}

FUNCTION {format.btitle}
{ title emphasize
}

FUNCTION {tie.or.space.connect}
{ duplicate$ text.length$ #3 <
    { "~" }
    { " " }
  if$
  swap$ * *
}

FUNCTION {either.or.check}
{ empty$
    'pop$
    { "can't use both " swap$ * " fields in " * cite$ * warning$ }
  if$
}

FUNCTION {format.bvolume.old}
{ volume empty$
    { "" }
    { "vol.~" volume *
      series empty$
    'skip$
    { " of " * series * }
      if$
      "volume and number" number either.or.check
    }
  if$
}

% DSB
FUNCTION {format.bvolume}
{ volume empty$
  { "" }
  { series empty$
    { "" }
    { series ", " * volume * }
    if$ 
    "volume and number" number either.or.check }
  if$
}

FUNCTION {format.number.series.old}
{ volume empty$
    { number empty$
    { series field.or.null }
    { "no.~" number *
      series empty$
        { "there's a number but no series in " cite$ * warning$ }
        { " in " * series * }
      if$
    }
      if$
    }
    { "" }
  if$
}

% DSB
FUNCTION {format.number.series}
{ volume empty$
  { number empty$
    { series field.or.null }
    { series empty$
      { "there's a number but no series in " cite$ * warning$ }
      { series ", " * number * }
      if$
    }
    if$
  }
  { "" }
  if$
}

FUNCTION {format.edition}
{ edition empty$
    { "" }
    { edition "l" change.case$ "~ed." * }
  if$
}

INTEGERS { multiresult }

FUNCTION {multi.page.check}
{ 't :=
  #0 'multiresult :=
    { multiresult not
      t empty$ not
      and
    }
    { t #1 #1 substring$
      duplicate$ "-" =
      swap$ duplicate$ "," =
      swap$ "+" =
      or or
    { #1 'multiresult := }
    { t #2 global.max$ substring$ 't := }
      if$
    }
  while$
  multiresult
}

FUNCTION {format.pages}
{ pages empty$
    { "" }
    { pages multi.page.check
    { "pp.~" pages n.dashify * }
    { "p.~" pages * }
      if$
    }
  if$
}

% DSB: Added papernumber
FUNCTION {format.papernumber}
{ papernumber empty$
    { "" }
    { papernumber
      "papernumber and pages" pages either.or.check }
  if$
}

% DSB: Add status field
FUNCTION {format.status.vol.year}
{ status empty$
  { volume field.or.null
    year empty$
      { "empty year in " cite$ * warning$ }
      { " (" year * ")" * * }
    if$ }
  { status
    year empty$
    { }
    { ", " year * * }
    if$ }
  if$
} 

FUNCTION {format.chapter.pages}
{ chapter empty$
    'format.pages
    { type empty$
    { "ch.~" chapter * }
    { type "l" change.case$ chapter tie.or.space.connect }
      if$
      pages empty$
    'skip$
    { ", " * format.pages * }
      if$
    }
  if$
}

FUNCTION {format.in.ed.booktitle}
{ booktitle empty$
    { "" }
    { editor empty$
    { "in " booktitle * }
    { "in " booktitle * ", " * format.ineditors * }
      if$
    }
  if$
}

FUNCTION {empty.misc.check}
{ author empty$ title empty$ howpublished empty$
  month empty$ year empty$ note empty$
  and and and and and
  key empty$ not and
    { "all relevant fields are empty in " cite$ * warning$ }
    'skip$
  if$
}

FUNCTION {format.thesis.type}
{ type empty$
    'skip$
    { pop$
      type "l" change.case$
    }
  if$
}

FUNCTION {format.tr.number}
{ type empty$
    { "{T}ech. {R}eport" }
    'type
  if$
  number empty$
    { "l" change.case$ }
    { number tie.or.space.connect }
  if$
}

FUNCTION {format.article.crossref}
{ key empty$
    { journal empty$
    { "need key or journal for " cite$ * " to crossref " * crossref *
      warning$
      ""
    }
    { "in " journal * }
      if$
    }
    { "in " key * }
  if$
  " \cite{" * crossref * "}" *
}

FUNCTION {format.crossref.editor}
{ editor #1 "{vv~}{ll}" format.name$
  editor num.names$ duplicate$
  #2 >
    { pop$ " et~al." * }
    { #2 <
    'skip$
    { editor #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =
        { " et~al." * }
        { " and " * editor #2 "{vv~}{ll}" format.name$ * }
      if$
    }
      if$
    }
  if$
}

FUNCTION {format.book.crossref}
{ volume empty$
    { "empty volume in " cite$ * "'s crossref of " * crossref * warning$
      "in "
    }
    { "vol.~" volume *
      " of " *
    }
  if$
  editor empty$
  editor field.or.null author field.or.null =
  or
    { key empty$
    { series empty$
        { "need editor, key, or series for " cite$ * " to crossref " *
          crossref * warning$
          "" *
        }
        { series * }
      if$
    }
    { key * }
      if$
    }
    { format.crossref.editor * }
  if$
  " \cite{" * crossref * "}" *
}

FUNCTION {format.incoll.inproc.crossref}
{ editor empty$
  editor field.or.null author field.or.null =
  or
    { key empty$
    { booktitle empty$
        { "need editor, key, or booktitle for " cite$ * " to crossref " *
          crossref * warning$
          ""
        }
        { "in " booktitle * }
      if$
    }
    { "in " key * }
      if$
    }
    { "in " format.crossref.editor * }
  if$
  " \cite{" * crossref * "}" *
}

FUNCTION {format.url}
{ url empty$
    { "" }
    { "\\ \url{" url * "}" * }
  if$
}

FUNCTION {article}
{ output.bibitem
  format.authors "author" output.check
  format.title "title" output.check
  crossref missing$
    { journal "journal" output.check
      format.status.vol.year output
    }
    { format.article.crossref output.nonnull }
  if$
  format.pages output
  format.papernumber output
  new.block
  note output
  format.url output
  fin.entry
}

% DSB: Moved up edition
FUNCTION {book}
{ output.bibitem
  author empty$
    { format.editors "author and editor" output.check }
    { format.authors output.nonnull
      crossref missing$
    { "author and editor" editor either.or.check }
    'skip$
      if$
    }
  if$
  format.btitle "title" output.check
  format.edition output
  crossref missing$
    { format.bvolume output
      format.number.series output
      publisher "publisher" output.check
      address output
    }
    { format.book.crossref output.nonnull }
  if$
  format.date "year" output.check
  new.block
  note output
  fin.entry
}

FUNCTION {booklet}
{ output.bibitem
  format.authors output
  format.title "title" output.check
  howpublished new.block.checka
  howpublished output
  address output
  format.date output
  new.block
  note output
  fin.entry
}

% DSB: Moved up edition
FUNCTION {inbook}
{ output.bibitem
  author empty$
    { format.editors "author and editor" output.check }
    { format.authors output.nonnull
      crossref missing$
    { "author and editor" editor either.or.check }
    'skip$
      if$
    }
  if$
  format.btitle "title" output.check
  format.edition output
  crossref missing$
    { format.bvolume output
      format.number.series output
      publisher "publisher" output.check
      address output
    }
    { format.book.crossref output.nonnull }
  if$
  format.date "year" output.check
  format.chapter.pages "chapter and pages" output.check
  new.block
  note output
  fin.entry
}

% DSB: Moved up edition; moved volume
FUNCTION {incollection}
{ output.bibitem
  format.authors "author" output.check
  format.title "title" output.check
  crossref missing$
    { format.in.ed.booktitle "booktitle" output.check
      format.edition output
      format.bvolume output
      format.number.series output
      publisher "publisher" output.check
      address output
      format.date "year" output.check
    }
    { format.incoll.inproc.crossref output.nonnull }
  if$
  format.chapter.pages output
  new.block
  note output
  fin.entry
}

% DSB: Reorder of organization, publisher, address (thanks to GR)
FUNCTION {inproceedings}
{ output.bibitem
  format.authors "author" output.check
  format.title "title" output.check
  crossref missing$
    { format.in.ed.booktitle "booktitle" output.check
      format.bvolume output
      format.number.series output
      address empty$
      { organization output
        publisher output
        format.date "year" output.check
      }
      { organization output
        publisher output
        address output.nonnull
        format.date "year" output.check
      }
      if$
    }
    { format.incoll.inproc.crossref output.nonnull }
  if$
  format.pages output
  new.block
  note output
  fin.entry
}

FUNCTION {conference} { inproceedings }

% DSB: Moved up edition
FUNCTION {manual}
{ output.bibitem
  author empty$
    { format.organization output }
    { format.authors output.nonnull }
  if$
  format.btitle "title" output.check
  format.edition output
  author empty$
    'skip$
    { organization output }
  if$
  address output
  format.date output
  new.block
  note output
  fin.entry
}

FUNCTION {mastersthesis}
{ output.bibitem
  format.authors "author" output.check
  format.title "title" output.check
  "Master's thesis" format.thesis.type output.nonnull
  school "school" output.check
  address output
  format.date "year" output.check
  new.block
  note output
  fin.entry
}

FUNCTION {misc}
{ output.bibitem
  format.authors output
  format.title output
  howpublished new.block.checka
  howpublished output
  format.date output
  new.block
  note output
  fin.entry
  empty.misc.check
}

FUNCTION {phdthesis}
{ output.bibitem
  format.authors "author" output.check
  format.btitle "title" output.check
  "Ph.D.~thesis" format.thesis.type output.nonnull
  school "school" output.check
  address output
  format.date "year" output.check
  new.block
  note output
  fin.entry
}

% DSB: Updates from GR -- move address and date to end
FUNCTION {proceedings}
{ output.bibitem
  editor empty$
    { format.organization output }
    { format.editors output.nonnull }
  if$
  format.btitle "title" output.check
  format.bvolume output
  format.number.series output
  address empty$
  { editor empty$
    'skip$
    { organization output }
    if$
    publisher output
    format.date "year" output.check
  }
  { editor empty$
    'skip$
    { organization output }
    if$
    publisher output
    address output.nonnull
    format.date "year" output.check
  }
  if$
  new.block
  note output
  fin.entry
}

FUNCTION {techreport}
{ output.bibitem
  format.authors "author" output.check
  format.title "title" output.check
  format.tr.number output.nonnull
  institution "institution" output.check
  address output
  format.date "year" output.check
  new.block
  note output
  fin.entry
}

FUNCTION {unpublished}
{ output.bibitem
  format.authors "author" output.check
  format.title "title" output.check
  new.block
  note "note" output.check
  format.date output
  fin.entry
}

FUNCTION {default.type} { misc }

MACRO {jan} {"Jan."}

MACRO {feb} {"Feb."}

MACRO {mar} {"Mar."}

MACRO {apr} {"Apr."}

MACRO {may} {"May"}

MACRO {jun} {"June"}

MACRO {jul} {"July"}

MACRO {aug} {"Aug."}

MACRO {sep} {"Sept."}

MACRO {oct} {"Oct."}

MACRO {nov} {"Nov."}

MACRO {dec} {"Dec."}

MACRO {acmcs} {"ACM Comput. Surveys"}

MACRO {acta} {"Acta Inf."}

MACRO {cacm} {"Comm. ACM"}

MACRO {ibmjrd} {"IBM J. Res. Dev."}

MACRO {ibmsj} {"IBM Syst.~J."}

MACRO {ieeese} {"IEEE Trans. Softw. Eng."}

MACRO {ieeetc} {"IEEE Trans. Comput."}

MACRO {ieeetcad}
 {"IEEE Trans. Comput.-Aided Design Integrated Circuits"}

MACRO {ipl} {"Inf. Process. Lett."}

MACRO {jacm} {"J.~Assoc. Comput. Mach."}

MACRO {jcss} {"J.~Comput. System Sci."}

MACRO {scp} {"Sci. Comput. Programming"}

MACRO {sicomp} {"SIAM J. Comput."}

MACRO {tocs} {"ACM Trans. Comput. Syst."}

MACRO {tods} {"ACM Trans. Database Syst."}

MACRO {tog} {"ACM Trans. Gr."}

MACRO {toms} {"ACM Trans. Math. Softw."}

MACRO {toois} {"ACM Trans. Office Inf. Syst."}

MACRO {toplas} {"ACM Trans. Prog. Lang. Syst."}

MACRO {tcs} {"Theoretical Comput. Sci."}

% DSB: -- Added macros --

MACRO {sisc} {"SIAM J. Sci. Comput."}

MACRO {sissc} {"SIAM J. Sci. Statist. Comput."}

MACRO {simax} {"SIAM J. Matrix. Anal. Appl."}

MACRO {mathcomp} {"Math. Comp."}

MACRO {etna} {"Electron. Trans. Numer. Anal."}

READ

FUNCTION {sortify}
{ purify$
  "l" change.case$
}

INTEGERS { len }

FUNCTION {chop.word}
{ 's :=
  'len :=
  s #1 len substring$ =
    { s len #1 + global.max$ substring$ }
    's
  if$
}

FUNCTION {sort.format.names}
{ 's :=
  #1 'nameptr :=
  ""
  s num.names$ 'numnames :=
  numnames 'namesleft :=
    { namesleft #0 > }
    { nameptr #1 >
    { "   " * }
    'skip$
      if$
      s nameptr "{vv{ } }{ll{ }}{  f{ }}{  jj{ }}" format.name$ 't :=
      nameptr numnames = t "others" = and
    { "et al" * }
    { t sortify * }
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

FUNCTION {sort.format.title}
{ 't :=
  "A " #2
    "An " #3
      "The " #4 t chop.word
    chop.word
  chop.word
  sortify
  #1 global.max$ substring$
}

FUNCTION {author.sort}
{ author empty$
    { key empty$
    { "to sort, need author or key in " cite$ * warning$
      ""
    }
    { key sortify }
      if$
    }
    { author sort.format.names }
  if$
}

FUNCTION {author.editor.sort}
{ author empty$
    { editor empty$
    { key empty$
        { "to sort, need author, editor, or key in " cite$ * warning$
          ""
        }
        { key sortify }
      if$
    }
    { editor sort.format.names }
      if$
    }
    { author sort.format.names }
  if$
}

FUNCTION {author.organization.sort}
{ author empty$
    { organization empty$
    { key empty$
        { "to sort, need author, organization, or key in " cite$ * warning$
          ""
        }
        { key sortify }
      if$
    }
    { "The " #4 organization chop.word sortify }
      if$
    }
    { author sort.format.names }
  if$
}

FUNCTION {editor.organization.sort}
{ editor empty$
    { organization empty$
    { key empty$
        { "to sort, need editor, organization, or key in " cite$ * warning$
          ""
        }
        { key sortify }
      if$
    }
    { "The " #4 organization chop.word sortify }
      if$
    }
    { editor sort.format.names }
  if$
}

FUNCTION {presort}
{ type$ "book" =
  type$ "inbook" =
  or
    'author.editor.sort
    { type$ "proceedings" =
    'editor.organization.sort
    { type$ "manual" =
        'author.organization.sort
        'author.sort
      if$
    }
      if$
    }
  if$
  "    "
  *
  year field.or.null sortify
  *
  "    "
  *
  title field.or.null
  sort.format.title
  *
  #1 entry.max$ substring$
  'sort.key$ :=
}

ITERATE {presort}

SORT

STRINGS { longest.label }

INTEGERS { number.label longest.label.width }

FUNCTION {initialize.longest.label}
{ "" 'longest.label :=
  #1 'number.label :=
  #0 'longest.label.width :=
}

FUNCTION {longest.label.pass}
{ number.label int.to.str$ 'label :=
  number.label #1 + 'number.label :=
  label width$ longest.label.width >
    { label 'longest.label :=
      label width$ 'longest.label.width :=
    }
    'skip$
  if$
}

EXECUTE {initialize.longest.label}

ITERATE {longest.label.pass}

FUNCTION {begin.bib}
{ preamble$ empty$
    'skip$
    { preamble$ write$ newline$ }
  if$
  "\begin{thebibliography}{"  longest.label  * "}" * write$ newline$
}

EXECUTE {begin.bib}

EXECUTE {init.state.consts}

EXECUTE {init.last.authors}

ITERATE {call.type$}

FUNCTION {end.bib}
{ newline$
  "\end{thebibliography}" write$ newline$
}

EXECUTE {end.bib}
 

% ETNA style file etna.cls
%
% Version of August 2021
% Copyright 2018  Stefan  Kindermann/ETNA 
% This file may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.2 of this license or (at your option) any later
% version. The latest version of this license is in:
%
%    http://www.latex-project.org/lppl.txt
%
% and version 1.2 or later is part of all distributions of
% LaTeX version 1999/12/01 or later.


\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesClass{etna}[2018/01/16  LaTeX document class]


\LoadClassWithOptions{article}              
\let \@textbottom \relax      

\@twosidetrue 
\@mparswitchtrue
\@twocolumnfalse


   \renewcommand{\normalsize}{%
   \@setfontsize\normalsize\@xpt\@xiipt
   \abovedisplayskip 10pt \@plus 2pt \@minus 5pt
   \abovedisplayshortskip \abovedisplayskip   
   \belowdisplayshortskip \belowdisplayskip    
   \belowdisplayskip \abovedisplayskip
   \let\@listi\@listI}
\normalsize
   
   \renewcommand{\footnotesize}{%
   \@setfontsize\footnotesize\@viiipt{9.5}%
   \abovedisplayskip 6\p@ \@plus2\p@ \@minus4\p@
   \abovedisplayshortskip \abovedisplayskip     
   \belowdisplayshortskip \belowdisplayskip     
   \def\@listi{\leftmargin\leftmargini
               \topsep 0pt                                      
               \parsep 0pt                                      
               \itemsep 0pt}%
   \belowdisplayskip \abovedisplayskip
}

\setlength\parindent{18pt}          
\setlength\headheight{10pt}        
\setlength\headsep{15pt}           
\setlength\footskip{15pt}             
\setlength\@maxdepth\maxdepth   
\setlength\textwidth{370pt}             
\setlength\textheight{596pt}        

\setlength\oddsidemargin{36pt}     
\setlength\evensidemargin{36pt}    
\setlength\marginparwidth{90pt}    

\if@compatibility
 \else
  \@settopoint\oddsidemargin                     
  \@settopoint\marginparwidth                     
\fi


\setlength\topmargin{0pt}                            
\skip\footins 13pt \@plus 4pt \@minus 2pt    
\setlength\partopsep{0pt}                             
                                                                     
\def\@listI{\leftmargin\leftmargini
            \parsep 0pt
            \topsep 0pt
            \itemsep 0pt}
\let\@listi\@listI
\@listi
\def\@listii {\leftmargin\leftmarginii
              \labelwidth\leftmarginii
              \advance\labelwidth-\labelsep
              \topsep    0pt
              \parsep     0pt
              \itemsep   0pt}
\def\@listiii{\leftmargin\leftmarginiii
              \labelwidth\leftmarginiii
              \advance\labelwidth-\labelsep
              \topsep    0pt
              \parsep     0pt
              \partopsep 0pt
              \itemsep     0pt}


\renewcommand\topfraction{.9}                    
\renewcommand\bottomfraction{.2}              
% \renewcommand\textfraction{.1}                   
\renewcommand\floatpagefraction{.9}            

\setlength{\floatsep}{6mm}
\setlength{\textfloatsep}{6mm}
\setlength{\intextsep}{6mm}


\setlength\leftmargini  {36pt}                  
\setlength\leftmargin{\leftmargini}         


    \def\ps@headings{%
      \let\@oddfoot\@empty\let\@evenfoot\@empty
      \def\@evenhead{\rlap{\thepage}\hfil\upshape\footnotesize\MakeUppercase\leftmark\hfil}%          %!
      \def\@oddhead{\hbox{}\hfil{\upshape\footnotesize\MakeUppercase\rightmark}\hfil\llap{\thepage}}% %!
      \let\@mkboth\markboth
      \def\sectionmark##1{%
        \markboth {\uppercase{%
           \ifnum \c@secnumdepth >\z@
            \thesection\quad\fi
            ##1}}{}}%
      \def\subsectionmark##1{%
        \markright {%
          \ifnum \c@secnumdepth >\@ne
            \thesubsection\quad\fi
            ##1}}}
            
\def\ps@myheadings{%
    \let\@oddfoot\@empty\let\@evenfoot\@empty
    \def\@evenhead{\rlap{\thepage}\hfil\upshape\footnotesize\MakeUppercase\leftmark\hfil}%          %!
    \def\@oddhead{\hbox{}\hfil{\upshape\footnotesize\MakeUppercase\rightmark}\hfil\llap{\thepage}}% %!
    \let\@mkboth\@gobbletwo
    \let\sectionmark\@gobble
    \let\subsectionmark\@gobble
    }

\renewcommand\maketitle{\par
  \begingroup
      \renewcommand\thefootnote{\@fnsymbol\c@footnote}%  
    \def\@makefnmark{\hbox to\z@{$\m@th^{\@thefnmark}$\hss}}%  
    \long\def\@makefntext##1{\parindent .25in\noindent                   
            \hb@[email protected]{%                                                                   
            \hss$\m@th^{\@thefnmark}$}##1}%                                  
    \if@twocolumn                              
      \ifnum \col@number=\@ne            
        \@maketitle                                
      \else                                        
        \twocolumn[\@maketitle]%
      \fi
    \else
      \global\@topnum\z@   
      \@maketitle                                   
    \fi                                                   
    \thispagestyle{plain}\@thanks         
  \endgroup                                          
  \setcounter{footnote}{0}%               
  \let\maketitle\relax                             
  \let\@maketitle\relax                         
  \gdef\@thanks{}
  \gdef\@author{}
  \gdef\@title{}
  \let\thanks\relax%
  }        
\newif\if@tempswb
\def\@maketitle{%
  \null
  \begin{center}%
   {\bfseries\expandafter\@mthx\@title\thanks\relax\par}
    \vskip 5pt%
    {\footnotesize
      \spaceskip=1.5\fontdimen2\the\font
            \@tempswafalse \expandafter\xgoo\@author\and\relax}
  \end{center}%
  \par
  \vskip 8pt}
  
\def\@mthx#1\thanks{\uppercase{#1} \futurelet \tempt \@mthxXX}
\def\@mthxXX{\ifx \tempt\relax \else\@mthxYY \fi}
\def\@mthxYY#1\thanks\relax{\unskip\thanks{#1}\mbox{\hspace{3pt}}}  
  

\def\goo#1{\@tempswafalse \@tempswbfalse \xgoo#1\and\relax}
\def\xgoo#1\and{\def\tempw{\@mthx#1\thanks\relax}\futurelet \tempp \xxgoo}
 
\def\xxgoo{\ifx \tempp\relax
\if@tempswa   
   \if@tempswb {\scriptsize , AND }\tempw  
                \else {\scriptsize \ AND }\tempw%
   \fi
\else 
    \tempw%
\fi
\else
   \if@tempswa, \@tempswbtrue \fi%
\tempw\unskip\@tempswatrue \expandafter \xgoo
\fi
}


\renewcommand\thesection       {\arabic{section}}
\renewcommand\thesubsection    {\thesection.\arabic{subsection}}
\renewcommand\thesubsubsection {\thesubsection.\arabic{subsubsection}}
\renewcommand\theparagraph     {\thesubsubsection.\arabic{paragraph}}
\renewcommand\thesubparagraph  {\theparagraph.\arabic{subparagraph}}



\def\@seccntformatdot#1{\csname the#1\endcsname.\hskip 0.5em}


\def\@sect#1#2#3#4#5#6[#7]#8{\ifnum #2>\c@secnumdepth
     \def\@svsec{}\else 
     \refstepcounter{#1}\edef\@svsec{\@seccntformatdot{#1}\relax}%
     %In sim %{\csname the#1\endcsname.\hskip 0.5em }
     \fi
     \@tempskipa #5\relax
      \ifdim \@tempskipa>\z@ 
        \begingroup #6\relax
          \@hangfrom{\hskip #3\relax\@svsec}{\interlinepenalty \@M #8\@@par}
        \endgroup
       \csname #1mark\endcsname{#7}%
       \addcontentsline{toc}{#1}{%
             \ifnum #2>\c@secnumdepth \else
                      \protect\numberline{\csname the#1\endcsname}\fi#7}
              \else
                       \def\@svsechd{%
                       #6\hskip #3\@svsec #8.\csname #1mark\endcsname
                      {#7}\addcontentsline{toc}{#1}{%
                      \ifnum #2>\c@secnumdepth 
                          \else
                             \protect\numberline{\csname the#1\endcsname}
                           \fi
                       #7}}
                  \fi
     \@xsect{#5}}
     

\def\@ssect#1#2#3#4#5{%
\@tempskipa #3\relax
   \ifdim \@tempskipa>\z@
     \begingroup #4\@hangfrom{\hskip #1}{\interlinepenalty \@M #5.\par}
     \endgroup
   \else \def\@svsechd{#4\hskip #1\relax #5.}\fi
    \@xsect{#3}}



\renewcommand\section{\@startsection{section}{1}{18pt}%
                                   {1.3ex \@plus .5ex \@minus .2ex}%              
                                   {-.5em \@plus -.1em}%                                   
                                   {\reset@font\normalsize\bfseries}}
\renewcommand\subsection{\@startsection{subsection}{2}{18pt}%
                                     {1.3ex\@plus .5ex \@minus .2ex}%
                                     {-.5em \@plus -.1em}%
                                     {\reset@font\normalsize\bfseries}}
\renewcommand\subsubsection{\@startsection{subsubsection}{3}{18pt}%
                                     {1.3ex\@plus .5ex \@minus .2ex}%
                                     {-.5em \@plus -.1em}%
                                     {\reset@font\normalsize\bfseries}}
\renewcommand\paragraph{\@startsection{paragraph}{4}{18pt}%
                                    {\parskip}%                                                    
                                    {-.5em plus -.1em}%                                     
                                    {\reset@font\normalsize\itshape}}
\renewcommand\subparagraph{\@startsection{subparagraph}{5}{\parindent}%
                                       {\parskip}%
                                       {-.5em plus -.1em}%
                                      {\reset@font\normalsize\itshape}}

\renewcommand\p@enumiii{\theenumi\theenumii} 
\renewcommand\labelitemi{$\m@th\bullet$}
\renewcommand\labelitemii{\normalfont\bfseries --}
\renewcommand\labelitemiii{$\m@th\ast$}
\renewcommand\labelitemiv{$\m@th\cdot$}

\newenvironment{@abs}[1]{%
       \vspace{4pt}\footnotesize  \parindent 15pt {\bfseries #1. }\ignorespaces
     }
     {\par\vspace{7pt}}

\renewenvironment{abstract}{\begin{@abs}{\abstractname}}{\end{@abs}}
\newenvironment{keywords}{\begin{@abs}{\keywordsname}}{\end{@abs}}
\newenvironment{AMS}{\begin{@abs}{\AMSname}}{\end{@abs}}


\newcommand\keywordsname{Key words}
\newcommand\AMSname{AMS subject classifications}



\newif\if@endproofset
 \@endproofsetfalse

 \def\@begintheorem#1#2{\par\bgroup{\scshape #1\ #2. }\itshape\ignorespaces}
\def\@opargbegintheorem#1#2#3{\par\bgroup%
   {\scshape #1\ #2\ ({\upshape #3}). }\it\ignorespaces}
\def\@endtheorem{\egroup\ignorespacesafterend}
\def\proof{\par{\textit{Proof.}}\ignorespaces\global\@endproofsetfalse}

\def\endproofsign{\vbox{\hrule height0.6pt\hbox{%
   \vrule height1.3ex width0.6pt\hskip0.8ex
   \vrule width0.6pt}\hrule height0.6pt
  }}

\def\endproof{%
\if@endproofset
\else 
\hspace{2em plus 0pt minus 1.5em}\endproofsign
\fi}  
\def\endproofhere{%
\global\@endproofsettrue
\hskip 2em plus 0em minus 1.5em
\endproofsign
}
\def\flushrightendproof{%
\hfill \break \hspace*{\fill}  \endproofhere
}


  \newtheorem{theorem}{Theorem}[section]
  \newtheorem{lemma}[theorem]{Lemma}
  \newtheorem{corollary}[theorem]{Corollary}
  \newtheorem{proposition}[theorem]{Proposition}
  \newtheorem{definition}[theorem]{Definition}

\AtBeginDocument{
\def\remark{\@ifnextchar[%
{\@exheadrem}
{{\refstepcounter{theorem}\@begintheorem{Remark}{\thetheorem}\upshape\ignorespaces}}       % \upshape 
}
\def\@exheadrem[#1]{\refstepcounter{theorem}\@opargbegintheorem{Remark}{\thetheorem}{#1}\upshape\ignorespaces}
\def\endremark{\endtheorem} %

\def\example{\@ifnextchar[%
{\@exheadex}
{{\refstepcounter{theorem}\@begintheorem{Example}{\thetheorem}\upshape\ignorespaces}}     % \upshape 
}
\def\@exheadex[#1]{\refstepcounter{theorem}\@opargbegintheorem{Example}{\thetheorem}{#1}\upshape\ignorespaces}
\def\endexample{\endtheorem}


\def\@begintheoremrm#1#2{\par\bgroup{\scshape #1\ #2. }\upshape\ignorespaces}             % \upshape 
\def\@opargbegintheoremrm#1#2#3{\par\bgroup%                                                        % \upshape 
   {\scshape #1\ #2\ ({\upshape #3}). }\upshape\ignorespaces}
}    
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
% Fixup.STY 
% 
% FROM FIXUP.STY
% We now redefine the eqnarray environment to correct the space around
% the operator.   Any changes to the definition in LaTeX itself
% will cause the `Warning: unable...'
% message to appear.  If this happens it will be necessary to update the
% definition of  \@tempb below and incorperate the changes into
% the new definitions of \eqnarray.
 
 
% This is the current definition of \eqnarray for the fleqn document style
% latex.ltx
 
\def\@tempb{%
   \stepcounter{equation}%
   \def\@currentlabel{\p@equation\theequation}%
   \global\@eqnswtrue
   \m@th
   \global\@eqcnt\z@
   \tabskip\@centering
   \let\\\@eqncr
   $$\everycr{}\halign to\displaywidth\bgroup
       \hskip\@centering$\displaystyle\tabskip\z@skip{##}$\@eqnsel
      &\global\@eqcnt\@ne\hskip \tw@\arraycolsep \hfil${##}$\hfil
      &\global\@eqcnt\tw@ \hskip \tw@\arraycolsep
         $\displaystyle{##}$\hfil\tabskip\@centering
      &\global\@eqcnt\thr@@ \hb@xt@\z@\bgroup\hss##\egroup
         \tabskip\z@skip
      \cr
}
\ifx\eqnarray\@tempb    % Try the default eqnarray environment
  \def\eqnarray{%
   \stepcounter{equation}%
   \def\@currentlabel{\p@equation\theequation}%
   \global\@eqnswtrue
   \m@th
   \global\@eqcnt\z@
   \tabskip\@centering
   \let\\\@eqncr
   $$\everycr{}\halign to\displaywidth\bgroup
       \hskip\@centering$\displaystyle\tabskip\z@skip{##}$\@eqnsel
      &\global\@eqcnt\@ne \hfil$\displaystyle{{}##{}}$\hfil
      &\global\@eqcnt\tw@ $\displaystyle{##}$\hfil\tabskip\@centering
      &\global\@eqcnt\thr@@ \hb@xt@\z@\bgroup\hss##\egroup
         \tabskip\z@skip
      \cr
}
\else    \typeout{Warning: Unable to fix unknown version of \string\eqnarray.}
\fi
 
\def\@tempb{}

 
\def\const{\mathop{\operator@font const}\nolimits}
\def\diag{\mathop{\operator@font diag}\nolimits}
\def\grad{\mathop{\operator@font grad}\nolimits}
\def\Range{\mathop{\operator@font Range}\nolimits}
\def\rank{\mathop{\operator@font rank}\nolimits}
\def\supp{\mathop{\operator@font supp}\nolimits}



\renewcommand\appendix{%
\renewcommand{\section}{%
\secdef\@apA\@sapA}%          
 \setcounter{section}{0}%
 \setcounter{subsection}{0}%
 \renewcommand\thesection{\Alph{section}}}


\newcommand\@apA[2][?]{%
\refstepcounter{section}%
{\vskip 1.3ex \@plus .5ex \@minus .2ex
\reset@font\normalsize\bfseries\appendixname\ \thesection. #2.}}

\newcommand\@sapA[1]{%
\refstepcounter{section}
{\vskip 1.3ex \@plus .5ex \@minus .2ex
\reset@font\normalsize\bfseries\appendixname\ \thesection.}}


\let\Appendix\appendix    
 
\renewcommand\figurename{Fig.}              
\setlength\belowcaptionskip{5pt}              
\def\@Figstring{figure}

 
\long\def\@makecaption#1#2{%
    \footnotesize
    \setlength{\parindent}{1.5pc}
  \ifx\@captype\@Figstring                     
    \vskip\abovecaptionskip
    \setbox\@tempboxa\hbox{{\normalfont\scshape #1}. {\normalfont\itshape #2}}% 
    \ifdim \wd\@tempboxa >\hsize                                        
      {\normalfont\scshape #1}. {\normalfont\itshape #2}\par
    \else
      \global\@minipagefalse                                     
      \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%        
    \fi
  \else                                             
    \hbox to\hsize{\hfil{\normalfont\scshape #1}\hfil}%
    \setbox\@tempboxa\hbox{{\normalfont\itshape #2}}%
    \ifdim \wd\@tempboxa >\hsize
      {\normalfont\itshape #2}\par
    \else
     \global\@minipagefalse
      \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
    \fi
    \vskip\belowcaptionskip
  \fi}

\let\savemakecap=\@makecaption


\bibindent=16pt
\renewenvironment{thebibliography}[1]
     {\setlength{\parskip}{0mm}                     
\par\addvspace{18pt} 
\@beginparpenalty=10000
    {\centering \footnotesize\uppercase\expandafter{\refname}\par \nobreak \addvspace{11pt} \nobreak \par}
     \@mkboth{\uppercase\expandafter{\refname}}{\uppercase\expandafter{\refname}}    
      \list{\@biblabel{\arabic{enumi}}}%                     
           {\settowidth\labelwidth{\@biblabel{#1}}%      
            \leftmargin\labelwidth                                      
            \advance\leftmargin\labelsep
              \advance\leftmargin\bibindent
              \itemindent -\bibindent
              \listparindent \itemindent
              \parsep \z@
            \usecounter{enumi}%
            \let\p@enumi\@empty
             \renewcommand\theenumiv{\@arabic\c@enumiv}}               
      \sloppy
      \clubpenalty4000
      \widowpenalty4000%
      \sfcode`\.=\@m\relax                               
      \footnotesize}                                        
     {\def\@noitemerr
       {\@latex@warning{Empty `thebibliography' environment}}%
      \endlist}
\renewcommand\newblock{}          


\newcommand\sameauthor{\leavevmode\vrule height 2pt depth -1.6pt width 23pt}


\renewcommand\footnoterule{%
  \kern-3pt  \hrule width 36pt
  \kern 2.6pt}
  
  
\long\def\@makefntext#1{%
    \parindent 18pt\noindent
    \hb@xt@18pt{\hss\@makefnmark}#1}
   


     \@addtoreset{equation}{section}   
     \renewcommand{\theequation}{\thesection.\arabic{equation}}  
    \@addtoreset{figure}{section}
    \renewcommand{\thefigure}{\thesection.\arabic{figure}}
    \@addtoreset{table}{section}
    \renewcommand{\thetable}{\thesection.\arabic{table}}
    \@addtoreset{theorem}{section}
    \renewcommand{\thetheorem}{\thesection.\arabic{theorem}}


\def\@publyear{20xx}
\def\@publvol{XX}
\def\@publfirstpage{1}
\def\@publlastpage{yy}
\def\@publcopyrightyear{\@publyear}
\def\@publisssn{1068--9613}


\def\@Etnarefother{%
    \bfseries\scriptsize\upshape\centering
     \href{http://www.kent.edu}{\color{black}{Kent State University} and }\\
       \bfseries\scriptsize\upshape\centering
      \href{http://www.ricam.oeaw.ac.at}{\color{black}{Johann\,Radon\,Institute\,(RICAM)}}\\
      }
\def\@Etnareftitle{\bfseries\scriptsize\upshape\centering \hypersetup{urlcolor=[rgb]{0.5,0.5,0.5}}
     \href{http://www.kent.edu}{Kent State University} and\\
       \bfseries\scriptsize\upshape\centering  \hypersetup{urlcolor=[rgb]{0.5,0.5,0.5}}
      \href{http://www.ricam.oeaw.ac.at}{Johann\,Radon\,Institute\,(RICAM)}\\
      }
\def\@ETNAathead{\bfseries\normalsize\upshape\centering
     \href{http://etna.ricam.oeaw.ac.at}{\color{black}{ETNA}}
     }
      
      
\def\@Stamppage{{}%
\setlength{\fboxrule}{1pt} 
\fbox{\begin{minipage}{1.43in} 
      \@ETNAathead \\[0.ex] 
      \@Etnarefother
   \end{minipage}}%
   }
   
\def\@Stamppagetitle{{}%
\setlength{\fboxrule}{1pt} 
\fbox{\begin{minipage}{1.43in} 
      \@ETNAathead \\[0.ex] 
     \@Etnareftitle
   \end{minipage}}%
   }   
   
\def\@Stamptitle{
  \begin{minipage}{2.5in}\bfseries\scriptsize\upshape%
    Electronic Transactions on Numerical Analysis.\\[2pt]
    Volume~\@publvol, pp.~\@publfirstpage--\@publlastpage, \@publyear.  \\[2pt]
    Copyright {\mdseries\textcopyright}~\@publcopyrightyear, Kent State University.\\[2pt]
    ISSN~\@publisssn. \\[2pt]
    \@etnadoi      % Modified 2018
\end{minipage}%
}

\RequirePackage[T1]{fontenc}
%\renewcommand{\rmdefault}{ptm} 
%\renewcommand{\ttdefault}{pcr}
\usepackage{times} % There is still no alternative to that

%
% 28 is best
%
\def\@firstpagehead{\begin{picture}(0,0) \put(256,35){\@Stamppagetitle}  \put(0,28){\@Stamptitle}\end{picture}}
\def\@otherpagehead{\begin{picture}(0,0) \put(256,35){\@Stamppage}\end{picture}}

 
 \renewcommand{\ps@plain}{\let\@mkboth\@gobbletwo%
   \renewcommand{\@oddhead}{\@firstpagehead}
  \renewcommand{\@evenhead}{\@firstpagehead}
  \renewcommand{\@evenfoot}{\hfil\footnotesize\textrm{\thepage}\hfil}%
  \renewcommand{\@oddfoot}{\@evenfoot}}

\def\ps@myheadings{%
    \let\@oddfoot\@empty\let\@evenfoot\@empty
    \def\@evenhead{\@otherpagehead
    \rlap{\thepage}\hfil\upshape\footnotesize\MakeUppercase\leftmark\hfil}%          %!
    \def\@oddhead{% 
    \@otherpagehead
    \hbox{}\hfil{\upshape\footnotesize\MakeUppercase\rightmark}\hfil\llap{\thepage}
    }% %!
    \let\@mkboth\@gobbletwo
    \let\sectionmark\@gobble
    \let\subsectionmark\@gobble
    }



\RequirePackage{microtype}
\RequirePackage[
colorlinks=true,
linkcolor=red,
filecolor=green,
citecolor=red,
hypertexnames=false,
bookmarks=false
]
{hyperref}



\newcommand\setbibdata[4]{%
\def\@publfirstpage{#1}
\def\@publlastpage{#2}
\def\@publvol{#3}
\def\@publyear{#4}
\addtocounter{page}{\@publfirstpage}
\addtocounter{page}{-1}
}

% Modifications 2018 -----------------------------------------------------

% Define doi: e.g. \setdoi{10.3934/ipi.2014.8.149}
\newcommand\setdoi[1]{%
\def\@etnadoi{\hypersetup{urlcolor=[rgb]{0,0,0}}%
\href{http://doi.org/#1}{DOI: #1}}
}

% Turn on DOI
\def\etnadoi#1{\gdef\@etnadoi{#1}}
\def\@etnadoi{DOI:} 
%

% Turn off DOI
% \def\@etnadoi{} 
%
% End Modifications 2018 -----------------------------------------------------

\def\shorttitle#1{\gdef\@shorttitle{#1}}
\def\@shorttitle{Running Title Required}
\def\shortauthor#1{\gdef\@shortauthor{#1}}
\def\@shortauthor{Author's Names}


\newcommand{\repaircap}{\let\@makecaption\savemakecap}

\AtBeginDocument{\markboth{\@shortauthor}{\@shorttitle}\pagestyle{myheadings}}

\clubpenalty=9000
\widowpenalty=9000
\relpenalty=5000


\onecolumn
\endinput

\documentclass[final,leqno,letterpaper]{etna}

\setbibdata{1}{xx}{46}{2017} %First page/Last page/volume/year

\hypersetup{%
    pdftitle={Document title},
    pdfauthor={John Doe, Erwin Schr\"odinger},
    pdfkeywords={a keyword, another keyword, and another one}
    }

\title{Your paper}

\author{First author's name\footnotemark[2]
        \and Second author's name\footnotemark[3]}

\shorttitle{SHORT TITLE} 
\shortauthor{F.~FIRSTA AND S.~SECONDA}

\begin{document}

\maketitle

\renewcommand{\thefootnote}{\fnsymbol{footnote}}

\footnotetext[2]{First author's address.}
\footnotetext[3]{Second author's address.}

\begin{abstract}
Paper's abstract.
\end{abstract}

\begin{keywords}
paper's key words, non-capitalized except for names
\end{keywords}

\begin{AMS}
AMS subject classifications
\end{AMS}

\section{First section} This is typically the paper's Introduction.
...
\end{document}