\bib{1988/mahler}
\yr 1988
\by Axel Mahler
\by Andreas Lampen
\paper shape---a software configuration management tool
\pages 228--243
\inbook \cite{1988/winkler-book}
\url http://grosskurth.ca/\allowbreak bib/\allowbreak entries.html#\allowbreak 1988/\allowbreak mahler
\endref
