\documentclass[fleqn,twoside,11pt]{article}

%% bibliography must be before escape styles
\usepackage{natbib}
\bibliographystyle{plain}
%% Escape/PSE styles
\usepackage{left_eq}   % To get the equation left aligned
\usepackage{CSPM}  % Stylefile 


%%% >>>>>>>>>>>>>>> use your own GRAPHICS configuration <<<<<<<<<<<<<<<<<<<<<<<
\usepackage{pstricks, pst-plot}	% pstricks
\usepackage{graphicx} % enables import of various formats
\usepackage{wrapfig}  % enables floating wrapped figures
\usepackage[figuresright]{rotating}
\usepackage{subcaption}
\usepackage{float}

%% math packages
\usepackage{amsmath}
\usepackage{amssymb}

%% >>>>>>>>>>>>>>>> user definitions BIBLIOGRAPHY & DEFS <<<<<<<<<<<<<<<<<<<<<<<<


\usepackage[english]{babel}
\usepackage{blindtext}

% ================================================================================

\title{My Paper Title}
%
\author[a]{First Author}
\author[b]{Second Author}
\author[c,*]{Corresponding Author}
\affil[a]{First affiliation, Address, City and Postcode, Country}
\affil[b]{Second affiliation, Address, City and Postcode, Country}
\affil[c]{Third affiliation, Address, City and Postcode, Country}
\email{*corresponding.author@xxxxxx.yyy}

 \HeaderTitle{My Paper Title}
 \HeaderAuthor{F. Author et al.}

% ==================================== title ====================================

\begin{document}
%\setcounter{page}{10}
\maketitle             % make title page with abstract and

\thispagestyle{empty}  % first page has a different format

% ================================================================================
\begin{changemargin}{1.5cm}{1.5cm} 
\begin{abstract}
  \small{Here comes the abstract of a manuscript presented at the 16th Conference of the Society of Physicists of Macedonia. The following information is important for authors: the manuscript is limited to \textbf{4 pages} for regular \textbf{contributed talks and posters}, \textbf{6 pages} for an \textbf{invited talk} and \textbf{8 pages} for \textbf{plenary talks}. Please prepare your manuscript on this template and do not exceed the number of pages. If the manuscript is not prepared on the given template or exceeds the number of pages, it will be returned back to the authors for adjustments, which will result in a delay of the publishing process.} 
\end{abstract}


\Keywords{keyword1, keyword2, keyword3}
\end{changemargin} 

% ==================================== body  =====================================

\section{Section title}

This is a section

\subsection{Sub-section}

Equations come as normal, the included style file for the left equation notation is automatically included. So for example
\begin{equation}
  A = B + C
\end{equation}
or an aligned equations
\begin{align}
  \dot{x} &= A \, x + B \, u \\
  y &= C \, x
\end{align}
But also the starred versions work:
\begin{equation*}
  A = B + C
\end{equation*}
or an aligned equations
\begin{align*}
  \dot{x} &= A \, x + B \, u \\
  y &= C \, x
\end{align*}

\blindtext[2]


The subsubsection then appears like:

\subsubsection{Subsubsection}

This gives all numbered titles \cite{Reference1}.

%\paragraph{Paragraph}
%\begin{wrapfigure}{r}{0.5\textwidth}
 % \includegraphics[width=0.5\textwidth]{F_drop.eps}
  %\caption{The world in a drop}
  %\label{Fig:drop}
%\end{wrapfigure}

Your plots and figures 

%\paragraph{Paragraph}
\begin{figure}[H]
\centering
 \includegraphics[width=0.4\textwidth]{Fig1.jpg}
  \caption{Ohrid Lake}
  \label{Fig:drop}
\end{figure}
Figure \ref{Fig:drop} shows a beautiful lake -- 

\begin{figure}[H]
  \centering
  \begin{subfigure}[b]{0.4\linewidth}
    \includegraphics[width=\linewidth]{plot.eps}
    \caption{Plot 1.}
  \end{subfigure}
  \begin{subfigure}[b]{0.4\linewidth}
    \includegraphics[width=\linewidth]{plot.eps}
    \caption{Plot 2.}
  \end{subfigure}
  \caption{Multiple figures.}
  \label{fig:coffee}
\end{figure}


Your tables 
\begin{table}[H]
\centering
\begin{tabular}{l|r}
Column header & Column header \\\hline
xxx & xxx \\
xxx & xxx \\\hline
\end{tabular}
\caption{\label{tab:widgets}An example table.}
\end{table}


\section{Another section}

\blindtext

\section{Conclusions}

Conclusions come here ...

% ================================ references ===================================
%% References 
%{\small\bibsep=0pt
%\bibliography{example}
%}

%\section*{References}

\begin{thebibliography} {}

\bibitem{Reference1}
N. MN. Surname and N. Surname, \textit{Book Title}, Cambridge Univ. Press, Page (Year).

\bibitem{Reference2}
N. Surname and N. Surname, \textit{Journal Title} \textbf{Vol.}, Page (Year).
\bibitem{Reference3}
N. Surname, \textit{Dissertation Title}, PhD thesis, University Name (Year).

\end{thebibliography}

\end{document}
% ================================== end =========================================