@book{Dybvig:tspl2,
author = {R. Kent Dybvig},
title = {The {Scheme} Programming Language},
publisher = {Prentice Hall},
edition = {Second},
year = 1996,
texturl = "http://www.scheme.com/tspl2/",
annote = {Second edition of~\cite{Dybvig:tspl3}.}}