资料来源 : Free On-Line Dictionary of Computing

COWSEL
     
        COntrolled Working SpacE Language.  Burstall and Popplestone,
        U Edinburgh, 1964-66.  LISP-like semantics with FORTH-like
        stack, and reverse Polish syntax.  Forerunner of POP.
        EPU-R-12, U Edinburgh (Apr 1966).