\documentclass[a4paper, 10pt]{article}

\usepackage[english]{babel}
\usepackage[colorlinks]{hyperref}
\usepackage{microtype}

\author{Brian Campbell, Dominic P. Mulligan, Claudio Sacerdoti Coen,\\Ian Stark and Paolo Tranquilli}
\title{Structured traces}
\date{}

\begin{document}

\maketitle

\begin{abstract}
\end{abstract}

%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%
% Section.                                                                    %
%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%
\section{Introduction}
\label{sect.introduction}

%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%
% Section.                                                                    %
%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%
\section{Body of paper that is complex}
\label{sect.body}

%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%
% Section.                                                                    %
%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%
\section{Conclusion}
\label{sect.conclusion}

\end{document}