\documentclass{appolb}
\usepackage{graphicx}
% graphicx package included for placing figures in the text
%------------------------------------------------------

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                %
%    BEGINNING OF TEXT                           %
%                                                %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
% \eqsec  % uncomment this line to get equations numbered by (sec.num)
\title{The paper title comes here...%
\thanks{Presented at the XXXVI Mazurian Lakes Conference on Physics, Piaski, Poland, September
1-7, 2019.}%
% you can use '\\' to break lines
}
\author{AuthorA, AuthorB
\address{affiliationA \linebreak}\\ 
AuthorC
\address{affiliationC}
}

%for multiple authors (>5) please use instead
%\author{ AuthorA$^{a}$, AuthorB$^{b}$, AuthorC$^{c}$, AuthorD$^{d}$,AuthorE$^{e}$, AuthorF$^{f}$
%\address{$^a$ affiliationA\\ $^b$ affiliationB\\ $^c$ affiliationC\\ $^d$ affiliationD\\
%$^e$ affiliationE\\ $^f$ affiliationF}} 

\maketitle
\begin{abstract}
Here comes the abstract
\end{abstract}
  
\section{Introduction}
Here comes the text ...

\section{Next section}
The text...
\subsection{Subsection}
The text...

%uncomment the following lines to place a figure
%\begin{figure}[htb]
%\centerline{%
%\includegraphics[width=12.5cm]{Fig1}}
%\caption{Plot of ...}
%\label{Fig:F2H}
%\end{figure}


\end{document}




