src/Doc/Demo_EPTCS/document/root.tex

clarified signature;

\documentclass[submission,copyright,creativecommons]{eptcs}
\usepackage[utf8]{inputenc}
\usepackage{underscore}
\usepackage[T1]{fontenc}

\hypersetup{colorlinks=true,linkcolor=black,citecolor=black,filecolor=black,urlcolor=black,pdfpagelabels}

\usepackage{amssymb}
\usepackage{isabelle,isabellesym}\isabellestyle{it}

\isadroptag{theory}
\isafoldtag{proof}

\providecommand{\event}{Isabelle}


\begin{document}

\title{Isabelle document preparation with EPTCS {\LaTeX} style}
\def\titlerunning{Easychair style}
\author{Makarius Wenzel
  \institute{Augsburg, Germany \\ \url{https://sketis.net}}}
\def\authorrunning{M. Wenzel}
\maketitle

\begin{abstract}
Isabelle is a formal document preparation system. This example shows how to
use it together with the Easychair style. See \url{http://style.eptcs.org} for
further information.
\end{abstract}

\input{session}

\bibliographystyle{eptcs}
\bibliography{root}

\end{document}