@book{Dybvig:csug8,
author = {R. Kent Dybvig},
title = {{Chez Scheme Version 8 User's Guide}},
publisher = {Cadence Research Systems},
year = 2009,
texturl = "http://www.scheme.com/csug8/",
biburl = "http://www.cs.indiana.edu/~dyb/pubs/csug8.bib",
annote = {User's guide and reference manual for Chez Scheme Version 8.
Complements \cite{Dybvig:tspl4}.}}