\chapter{Nebendokument 1}
\selectlanguage{english}
\section{English}
\enquote{\"a Hello! \today}

\selectlanguage{ngerman}
\section{Andere Sprachen}
\subsection{Deutsch}
\enquote{\"a Hallo! \today}

\selectlanguage{russian}
\subsection{Russkiy yazyk}
\enquote{\"a Privet i dobry\U{i} denp1! \today}

\selectlanguage{ngerman}