s-algol

from The Free On-line Dictionary of Computing (8 July 2008)

S-ALGOL

   Orthogonal data structures on ALGOL 60.  "S-Algol Language
   Reference Manual", R. Morrison, TR CS/79/1 U St Andrews, 1979.
   "An Introduction to Programming with S-Algol", A.J. Cole &
   R. Morrison, Cambridge U Press 1982.