\bib{2002/heydon}
\yr 2002
\by Allan Heydon
\by Roy Levin
\by Timothy Mann
\by Yuan Yu
\book The Vesta software configuration management system
\bookinfo Research Report 177
\publ Compaq Systems Research Center
\url ftp://gatekeeper.research.compaq.com/pub/DEC/SRC/research-reports/SRC-177.pdf
\seenewer \cite{2006/heydon-book}
\endref
