@article{Dybvig:arity,
author = {R. Kent Dybvig and Robert Hieb},
title = {A new approach to procedures with variable arity},
journal = {{Lisp} and Symbolic Computation},
volume = 3,
number = 3,
pages = {229--244},
month = sep,
year = 1990,
texturl = "http://www.cs.indiana.edu/~dyb/pubs/LaSC-3-3-pp229-244.pdf",
annote = {Describes an alternative to the ``dot'' notation for defining
procedures that accept variable numbers of arguments; only the
multiple-case notion is adopted in Chez Scheme (as {\tt case-lambda}).}}