1. A subset of ALGOL 60 , with many ALGOL W extensions.
["BABEL, A New Programming Language", R.S. Scowen, Natl Phys Lab UK, Report CCU7, 1969].
2. Mentioned in The Psychology of Computer Programming, G.M. Weinberg, Van Nostrand 1971, p.241.
3. A language based on higher-order functions and first-order logic .
["Graph-Based Implementation of a Functional Logic Language", H. Kuchen et al, Proc ESOP 90, LNCS 432, Springer 1990, pp.271-290].
["Logic Programming with Functions and Predicates: The Language BABEL", Moreno-Navarro et al, J Logic Prog 12(3) (Feb 1992)].
(1994-11-28)