\documentclass[a4paper,11pt]{article}
\usepackage{CAR}
\begin{document}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Template für einen Artikel in der Rubrik CA in der Schule
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\Abschnitt
{Computeralgebra in der Schule}
{Computeralgebra in der Schule}
{ca_schule}

\vspace{3mm}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Autoren/Titel/usw.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\Aufsatz
% Titel des Aufsatzes
{Titel des Aufsatzes}
% Titel des Aufsatzes (Inhaltsverzeichnis)
{Titel des Aufsatzes}
% Autor
{M. Mustermann}
% Abkuerzung des Namens als Label
{mustermann}
% Autor mit Ort
{M. Mustermann\\(Musterstadt)}
% Foto des Autors
{mustermann.jpg}
% E-Mail
{m.name@email.de}

\vspace{3mm}
\begin{multicols}{2}
\noindent


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Hier unten kommt der Artikel hin
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% Mit \Ueberschrift{Titel}{label} wird ein neuer Abschnitt begonnen
\Ueberschrift{Einleitung}{sec_1}

% Mit \Ueberschriftu{Titel} wird ein Unterabschnitt begonnen
\Ueberschriftu{Unterabschnitt}

%%% Für Abbildungen kann man folgenden Code benutzen:
%\begin{figurehere}
%\centering
%\includegraphics[width=0.9\columnwidth]{abb1.jpg}
%\caption{\label{Abb_1}}
%\end{figurehere}
%\bigskip




%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Literaturverzeichnis, falls gewünscht, ansonsten einfach herauslöschen
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{thebibliography}{1}
\itemsep=0cm plus 0pt minus 0pt


\bibitem{mn97}
Max Mustermann und Hans Niemand,
\newblock {\em Example of a Book},
\newblock Springer-Verlag, 1997.


\end{thebibliography}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


\end{multicols}


\end{document}