I've seen "The Revised Revised Report on Scheme or An UnCommon Lisp" referenced as "R3S". I would like to discourage this and suggest using "RRRS" or "R2RS". The "Revised^3 Report on the Algorithmic Language Scheme" will be in December SIGPLAN. The obvious reference is "R3RS" which is why I would like to discourge the use of "R3S" for the UnCommon Lisp report. John