\cite{klauck-kirsche-chattythings}
-\input{address-allocation.tex}
-\input{dns-extensions.tex}
-\input{xmpp.tex}
+\input{sec-address-allocation.tex}
+\input{sec-dns-extensions.tex}
+\input{sec-xmpp.tex}
\input{sec-chatty-things.tex}
\section{Related Approaches}