大きな泥だんご
↑ Richard P. Gabriel and Guy L. Steele (1996). “The Evolution of Lisp”. ACM History of programming languages—II 28 (3): 233–330. doi:10.1145/155360.155373. http://portal.acm.org/citation.cfm?id=154766.155373.
↑ Thomas J. Bergin and Richard J. Gibson (1996). “Supplemental material from HOPL II”. ACM SIGPLAN Notices: 9–20. doi:10.1145/240964.1198155. http://portal.acm.org/citation.cfm?id=1198155.