English Computing Dictionary
◊ R4RS
R4RS
A revision of {R3RS}, revised in {R3.99RS}.
{(ftp://altdorf.ai.mit.edu/)}
["The Revised^4 Report on the Algorithmic Language Scheme", W.
Clinger et al, MIT (Nov 1991)].
(1994-10-28)
[Later revisions?]
 r3.99rs  r3rs  r4rs  r7/)}.  rbase