abstract.tex

\documentclass[12pt]{article}
%\usepackage[cp1251]{inputenc}
%\usepackage[english,russian,ukrainian]{babel}

\pagestyle{empty}
\textwidth144mm
\textheight222mm
\topmargin-12mm
\parskip4pt plus2pt minus2pt

\renewcommand{\title}[1]{\begin{center}\textbf{\large #1}\end{center}}
\renewcommand{\author}[3]{\begin{center}
\medskip\textsc{#1}\\\medskip\textit{#2}\\
\smallskip\textrm{#3}\end{center}}
\renewenvironment{abstract}{\noindent}{}

%list here necessary packages, for example
\usepackage{amssymb, amsmath}

\begin{document}

\title{} %title of presentation

\author{}%author's name
{}%author's university
{} %author's e-mail address

\begin{abstract}%abstract text

\medskip
{\footnotesize \begin{enumerate} \item %references
\end{enumerate}}
\end{abstract}

\end{document}