[1] Sperber, Dybvig, Flatt, Van Straaten, Findler, Matthews, "Revised6 Report on the Algorithmic Language Scheme
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S-ExpressionsArchivado el 7 de octubre de 2013 en Wayback Machine., Network Working Group, Internet Draft, Expires November 4, 1997 - R. Rivest, May 4, 1997 draft-rivest-sexp-00.txt, Ronald L. Rivest, CSAIL MIT website
S-ExpressionsArchivado el 7 de octubre de 2013 en Wayback Machine., Network Working Group, Internet Draft, Expires November 4, 1997 - R. Rivest, May 4, 1997 draft-rivest-sexp-00.txt, Ronald L. Rivest, CSAIL MIT website