% IAS style adapted from ioscrcb style made by Diamant & Hol Publishers
%
% A simple example of latex source file:
%
% \documentstyle[epsf]{ias}
% \begin{document}
% \title{YOUR TITLE}
% \author{AUTHOR1 \\
% AFFILIATION1 \\
% ADDRESS1 \\
% EMAIL1
% \and
% AUTHOR2
% AFFILIATION2 \\
% ADDRESS2 \\
% EMAIL2
% ...
% }
%\maketitle
%
% \begin{abstract}
% INSERT ABSTRACT HERE
% \end{abstract}
%
% INSERT CONTRIBUTION HERE
%
% \bibliographystyle{plain}
% \bibliography{YOUR REFERENCE FILE}
%
% \end{document}

\typeout{IAS style - adapted from IOS Press style}

\def\@ptsize{0}
\@namedef{ds@11pt}{\def\@ptsize{1}}
\@namedef{ds@12pt}{\def\@ptsize{2}}

\def\ds@draft{\overfullrule 5pt}
\@options

\lineskip 1pt \normallineskip 1pt
\def\baselinestretch{1}

\def\@normalsize{\@setsize\normalsize{14.5pt}\xiipt\@xiipt
\abovedisplayskip 12pt plus3pt minus7pt\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip \z@ plus3pt\belowdisplayshortskip 6.5pt plus3.5pt
minus3pt\let\@listi\@listI}

\def\small{\@setsize\small{11.3pt}\xipt\@xipt
\abovedisplayskip 11pt plus3pt minus6pt\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip \z@ plus3pt\belowdisplayshortskip 6.5pt
plus3.5pt minus3pt

\def\@listi{\leftmargin\leftmargini
\parsep 4.5pt plus 2pt minus 1pt \itemsep
\parsep
\topsep 9pt plus 3pt minus 5pt}}

\def\footnotesize{\@setsize\footnotesize{12pt}\xpt\@xpt
\abovedisplayskip 10pt plus2pt minus5pt\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip \z@ plus3pt\belowdisplayshortskip 6pt plus3pt minus3pt
\def\@listi{\leftmargin\leftmargini \topsep 6pt plus 2pt minus 2pt\parsep 3pt
plus 2pt minus 1pt
\itemsep \parsep}}

\def\scriptsize{\@setsize\scriptsize{9.5pt}\viiipt\@viiipt}
\def\tiny{\@setsize\tiny{7pt}\vipt\@vipt}
\def\large{\@setsize\large{18pt}\xivpt\@xivpt}
\def\Large{\@setsize\Large{22pt}\xviipt\@xviipt}
\def\LARGE{\@setsize\LARGE{25pt}\xxpt\@xxpt}
\def\huge{\@setsize\huge{30pt}\xxvpt\@xxvpt}
\let\Huge=\huge
\normalsize

\oddsidemargin 39.5pt \evensidemargin 39.5pt
\marginparwidth 68pt

\marginparsep 10pt
\topmargin 27pt \headheight 12pt \headsep 25pt \footskip 30pt

\textheight = 36\baselineskip
\advance\textheight by \topskip
%
\textheight=250mm
\topmargin=-18mm
\textwidth=156mm
\oddsidemargin=-2mm
\evensidemargin=-2mm
%
\footnotesep 8.4pt
\skip\footins 10.8pt plus 4pt minus 2pt
\floatsep 14pt plus 2pt minus 4pt \textfloatsep 20pt plus 2pt minus 4pt
\intextsep 14pt plus 4pt minus 4pt \@maxsep 20pt \dblfloatsep 14pt plus 2pt
minus 4pt \dbltextfloatsep 20pt plus 2pt minus 4pt \@dblmaxsep 20pt
\@fptop 0pt plus 1fil \@fpsep 10pt plus 2fil \@fpbot 0pt plus 1fil
\@dblfptop 0pt plus 1fil \@dblfpsep 10pt plus 2fil \@dblfpbot 0pt plus 1fil
\marginparpush 7pt

\parskip 0pt plus 1pt \parindent 1.5em \partopsep 3pt plus 2pt minus 2pt
\@lowpenalty 51 \@medpenalty 151 \@highpenalty 301
\@beginparpenalty -\@lowpenalty \@endparpenalty -\@lowpenalty \@itempenalty
-\@lowpenalty

\def\part{\par \addvspace{4ex} \@afterindentfalse \secdef\@part\@spart}

\def\@part[#1]#2{\ifnum \c@secnumdepth >\m@ne \refstepcounter{part}
\addcontentsline{toc}{part}{\thepart \hspace{1em}#1}\else
\addcontentsline{toc}{part}{#1}\fi { \parindent 0pt \raggedright
 \ifnum \c@secnumdepth >\m@ne \Large \bf Part \thepart \par\nobreak \fi \huge
\bf #2\markboth{}{}\par } \nobreak \vskip 3ex \@afterheading }
\def\@spart#1{{\parindent 0pt \raggedright
 \huge \bf
 #1\par} \nobreak \vskip 3ex \@afterheading }

\def\section{\goodbreak\vskip 4mm
  \@startsection {section}{1}{\z@}
  {-3.5ex plus -1ex minus -.2ex}
  {2.3ex plus .2ex}
  {\normalsize\bf}}

\def\subsection{\goodbreak
  \@startsection{subsection}{2}{\z@}
  {-3.25ex plus -1ex minus -.2ex}
  {2.3ex plus .2ex}
  {\normalsize\em}}

\def\subsubsection{\goodbreak
  \@startsection{subsubsection}{3}{\z@}
  {-3.25ex plus -1ex minus -.2ex}
  {1.5ex plus .2ex}
  {\normalsize\em}}

\def\paragraph{
  \@startsection{paragraph}{4}{\z@}
  {3.25ex plus 1ex minus .2ex}
  {-1em}
  {\normalsize\em}}

\def\subparagraph{
  \@startsection{subparagraph}{4}
  {\parindent}
  {3.25ex plus 1ex minus .2ex}
  {-1em}
  {\normalsize\em}}

\setcounter{secnumdepth}{3}

\def\appendix{\par
 \setcounter{section}{0}
 \setcounter{subsection}{0}
 \def\thesection{\Alph{section}}}

\leftmargini 2.5em
\leftmarginii 2.2em
\leftmarginiii 1.87em
\leftmarginiv 1.7em
\leftmarginv 1em
\leftmarginvi 1em
\leftmargin\leftmargini
\labelsep .5em
\labelwidth\leftmargini\advance\labelwidth-\labelsep

\def\@listI{\leftmargin\leftmargini \parsep 5pt plus 2.5pt minus 1pt\topsep
10pt plus 4pt minus 6pt\itemsep 5pt plus 2.5pt minus 1pt}
\let\@listi\@listI
\@listi
\def\@listii{\leftmargin\leftmarginii
 \labelwidth\leftmarginii\advance\labelwidth-\labelsep
 \topsep 5pt plus 2.5pt minus 1pt
 \parsep 2.5pt plus 1pt minus 1pt
 \itemsep \parsep}
\def\@listiii{\leftmargin\leftmarginiii
 \labelwidth\leftmarginiii\advance\labelwidth-\labelsep
 \topsep 2.5pt plus 1pt minus 1pt
 \parsep \z@ \partopsep 1pt plus 0pt minus 1pt
 \itemsep \topsep}
\def\@listiv{\leftmargin\leftmarginiv
 \labelwidth\leftmarginiv\advance\labelwidth-\labelsep}
\def\@listv{\leftmargin\leftmarginv
 \labelwidth\leftmarginv\advance\labelwidth-\labelsep}
\def\@listvi{\leftmargin\leftmarginvi
 \labelwidth\leftmarginvi\advance\labelwidth-\labelsep}

\relax

\def\labelenumi{\theenumi.}
\def\theenumi{\arabic{enumi}}
\def\labelenumii{(\theenumii)}
\def\theenumii{\alph{enumii}}
\def\p@enumii{\theenumi}
\def\labelenumiii{\theenumiii.}
\def\theenumiii{\roman{enumiii}}
\def\p@enumiii{\theenumi(\theenumii)}
\def\labelenumiv{\theenumiv.}
\def\theenumiv{\Alph{enumiv}}
\def\p@enumiv{\p@enumiii\theenumiii}

\def\labelitemi{\bf --}
\def\labelitemii{$\ast$}
\def\labelitemiii{$\circ$}
\def\labelitemiv{$\cdot$}

\def\verse{\let\\=\@centercr
 \list{}{\itemsep\z@ \itemindent -1.5em\listparindent \itemindent
 \rightmargin\leftmargin\advance\leftmargin 1.5em}\item[]}
\let\endverse\endlist
\def\quotation{\list{}{\listparindent 1.5em
 \itemindent\listparindent
 \rightmargin\leftmargin \parsep 0pt plus 1pt}\item[]}
\let\endquotation=\endlist
\def\quote{\list{}{\rightmargin\leftmargin}\item[]}
\let\endquote=\endlist

\def\descriptionlabel#1{\hspace\labelsep \bf #1}
\def\description{\list{}{\labelwidth\z@ \itemindent-\leftmargin
 \let\makelabel\descriptionlabel}}
\let\enddescription\endlist

\def\theequation{\arabic{equation}}

\def\titlepage{\@restonecolfalse \newpage \thispagestyle{empty}\c@page\z@}
\def\endtitlepage{\if@restonecol\twocolumn \else \newpage \fi}

\arraycolsep 5pt \tabcolsep 6pt \arrayrulewidth .4pt \doublerulesep 2pt
\tabbingsep \labelsep

\skip\@mpfootins = \skip\footins
\fboxsep = 3pt \fboxrule = .4pt

\newcounter{part}
\newcounter {section}
\newcounter {subsection}[section]
\newcounter {subsubsection}[subsection]
\newcounter {paragraph}[subsubsection]
\newcounter {subparagraph}[paragraph]

\def\thepart{\Roman{part}} \def\thesection {\arabic{section}}
\def\thesubsection {\thesection.\arabic{subsection}}
\def\thesubsubsection {\thesubsection .\arabic{subsubsection}}
\def\theparagraph {\thesubsubsection.\arabic{paragraph}}
\def\thesubparagraph {\theparagraph.\arabic{subparagraph}}

\def\@pnumwidth{1.55em}
\def\@tocrmarg {2.55em}
\def\@dotsep{4.5}
\setcounter{tocdepth}{3}

\def\tableofcontents{\section*{Contents\@mkboth{CONTENTS}{CONTENTS}}
 \@starttoc{toc}}
\def\l@part#1#2{\addpenalty{\@secpenalty}
 \addvspace{2.25em plus 1pt} \begingroup
 \@tempdima 3em \parindent \z@ \rightskip \@pnumwidth \parfillskip
-\@pnumwidth
 {\large \bf \leavevmode #1\hfil \hbox to\@pnumwidth{\hss #2}}\par
 \nobreak \endgroup}
\def\l@section#1#2{\addpenalty{\@secpenalty} \addvspace{1.0em plus 1pt}
\@tempdima 1.5em \begingroup
 \parindent \z@ \rightskip \@pnumwidth
 \parfillskip -\@pnumwidth
 \bf \leavevmode \advance\leftskip\@tempdima \hskip -\leftskip #1\nobreak\hfil
\nobreak\hbox to\@pnumwidth{\hss #2}\par
 \endgroup}

\def\l@subsection{\@dottedtocline{2}{1.5em}{2.3em}}
\def\l@subsubsection{\@dottedtocline{3}{3.8em}{3.2em}}
\def\l@paragraph{\@dottedtocline{4}{7.0em}{4.1em}}
\def\l@subparagraph{\@dottedtocline{5}{10em}{5em}}
\def\listoffigures{\section*{List of Figures\@mkboth
 {LIST OF FIGURES}{LIST OF FIGURES}}\@starttoc{lof}}
\def\l@figure{\@dottedtocline{1}{1.5em}{2.3em}}
\def\listoftables{\section*{List of Tables\@mkboth
 {LIST OF TABLES}{LIST OF TABLES}}\@starttoc{lot}}
\let\l@table\l@figure

\def\thebibliography#1{\section*{\normalsize\bf References\@mkboth
 {REFERENCES}{REFERENCES}}\normalsize \list
 {[\arabic{enumi}]}{\settowidth\labelwidth{[#1]}\leftmargin\labelwidth
 \advance\leftmargin\labelsep
 \usecounter{enumi}}
 \def\newblock{\hskip .11em plus .33em minus .07em}
 \sloppy\clubpenalty4000\widowpenalty4000
 \sfcode`\.=1000\relax \parskip=0mm \lineskiplimit=-30pt }
\let\endthebibliography=\endlist

\newif\if@restonecol
\def\theindex{\@restonecoltrue
\columnseprule \z@
\columnsep 35pt\twocolumn[\section*{Index}]
 \@mkboth{INDEX}{INDEX}\thispagestyle{plain}\parindent\z@
 \parskip\z@ plus .3pt\relax\let\item\@idxitem}
\def\@idxitem{\par\hangindent 40pt}
\def\subitem{\par\hangindent 40pt \hspace*{20pt}}
\def\subsubitem{\par\hangindent 40pt \hspace*{30pt}}
\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi}
\def\indexspace{\par \vskip 10pt plus 5pt minus 3pt\relax}

\def\footnoterule{\kern-3\p@
 \hrule width .4\columnwidth
 \kern 2.6\p@}

\long\def\@makefntext#1{\parindent 1em\noindent
 \hbox to 1.8em{\hss$^{\@thefnmark}$}#1}

\setcounter{topnumber}{2}
\def\topfraction{.7}
\setcounter{bottomnumber}{1}
\def\bottomfraction{.3}
\setcounter{totalnumber}{3}
\def\textfraction{.2}
\def\floatpagefraction{.5}
\setcounter{dbltopnumber}{2}
\def\dbltopfraction{.7}
\def\dblfloatpagefraction{.5}

\long\def\@makecaption#1#2{
 \vskip 10pt
 \setbox\@tempboxa\hbox{\small #1: #2}
 \ifdim \wd\@tempboxa >\hsize #1: #2\par \else \hbox
to\hsize{\hfil\box\@tempboxa\hfil}
 \fi  \vskip 2pt}

\newcounter{figure}
\def\thefigure{\@arabic\c@figure}
\def\fps@figure{tbp}
\def\ftype@figure{1}
\def\ext@figure{lof}
\def\fnum@figure{Figure \thefigure}
\def\figure{\@float{figure}}
\let\endfigure\end@float
\@namedef{figure*}{\@dblfloat{figure}}
\@namedef{endfigure*}{\end@dblfloat}
\newcounter{table}
\def\thetable{\@arabic\c@table}
\def\fps@table{tbp}
\def\ftype@table{2}
\def\ext@table{lot}
\def\fnum@table{Table \thetable}
\def\table{\@float{table}}
\let\endtable\end@float
\@namedef{table*}{\@dblfloat{table}}
\@namedef{endtable*}{\end@dblfloat}

\def\thanks#1{\gdef\@thanks{#1}} \gdef\@thanks{}
\def\email#1{\gdef\@email{#1}} \gdef\@email{}

\def\maketitle{
   \newpage
   \null
   \vskip 2em
   \begin{center}
%       {\LARGE \bf \@title \par}
       {\LARGE \@title \par}
       \vskip 2em
       {
        \begin{tabular}[t]{c}
           \@author
        \end{tabular}
        \par
       }
   \end{center}
}

\def\abstract
   {%
   \small \quotation
   \parshape=1 18mm 120mm
   \noindent{\bf Abstract.}
%   \it%
   }

\def\endabstract
   {%
   \endquotation
   }

\mark{{}{}}

\def\ps@headings{\let\@mkboth\markboth
\def\@oddfoot{}\def\@evenfoot{}\def\@oddhead{\hbox {}\sl \rightmark \hfil
\rm\thepage}\def\sectionmark##1{\markright {\uppercsea{\ifnum \c@secnumdepth
>\z@ \thesection\hskip 1em\relax \fi ##1}}}}

\def\ps@myheadings{\let\@mkboth\@gobbletwo
\def\@oddhead{\hbox{}{\sl\rightmark} \hfil {\rm \thepage}}
\def\@oddfoot{}
\def\@evenhead{\rm \thepage\hfil\sl\leftmark\hbox{}}
\def\@evenfoot{}
\def\sectionmark##1{}\def\subsectionmark##1{}}

\def\today{\ifcase\month\or
 January\or February\or March\or April\or May\or June\or
 July\or August\or September\or October\or November\or December\fi
 \space\number\day, \number\year}

%\ps@plain
\let \@mkboth \@gobbletwo \def \@oddhead {}\def \@oddfoot {\hfil }
\def \@evenhead {}\let \@evenfoot \@oddfoot
\def\thepage{}
\onecolumn \raggedbottom

\ps@myheadings \pagenumbering{arabic} \onecolumn \@twosidetrue

% redefinitions to get ios tables and captions

\def\@caption#1[#2]#3{\par \addcontentsline {\csname ext@#1\endcsname
}{#1}{\protect \numberline {\csname the#1\endcsname }{\ignorespaces
#2}}\begingroup \@parboxrestore \small  \@makecaption {\csname
fnum@#1\endcsname }{\ignorespaces #3}\par \endgroup }
\def\table{\begingroup \small \@ifnextchar [{\@xfloat {table}}{\edef
\@tempa {\noexpand \@xfloat {table}[\csname fps@table\endcsname ]}\@tempa}}
\def\endtable{\par \vskip \z@ \egroup \ifnum \@floatpenalty <\z@ \@cons
\@currlist \@currbox \ifdim \ht \@currbox >\textheight \ht \@currbox
\textheight \fi \ifnum \@floatpenalty < -\@Mii \penalty -\@Miv \@tempdima
\prevdepth \vbox {} \prevdepth \@tempdima \penalty \@floatpenalty \else
\vadjust {\penalty -\@Miv \vbox {}\penalty \@floatpenalty }\@esphack \fi
\fi \endgroup}

%---
\def\l@chapter#1#2{\addpenalty{-\@highpenalty}
 \vskip 1.0em plus 1pt \@tempdima 1.5em \begingroup
 \parindent \z@ \rightskip \@pnumwidth
 \parfillskip -\@pnumwidth
 \bf \leavevmode \advance\leftskip\@tempdima \hskip -\leftskip #1\nobreak\hfil
\nobreak\hbox to\@pnumwidth{\hss #2}\par
 \penalty\@highpenalty \endgroup}

\pagestyle{empty}
\date{}