Article class
Authors, emails, and affiliations are supported.
\documentclass[a4paper]{article}
\newcommand{\affilmark}[1]{\rlap{\textsuperscript{\itshape#1}}}
\usepackage{lipsum}
\begin{document}
\vspace*{3ex}
\begin{center}\LARGE
The title of this paper, long enough to break over two lines
\end{center}
\vspace*{2ex}
\begin{flushleft}\large
A. N. Author\affilmark{a},\quad
B. P. Another\affilmark{b},\quad
C. Q. Third\affilmark{c}\\[2ex]
\normalsize\itshape
\textsuperscript{a,b}\,Department of Cuisine, University of Nowhere\\
\textsuperscript{c}\,Department of Departmentalization, University of Somewhere\\[1ex]
\upshape Corresponding author's email: \texttt{A.N.Author@nowhere.edu}
\end{flushleft}
\vspace*{3ex}
\begin{abstract}
\lipsum[1-2]
\end{abstract}
\section{Introduction}
\lipsum
\end{document}