1. English Language Programs. Language for testing avionics
equipment, on Varian 620/i.
"Multiband Automatic test Equipment - A Computer Controlled
Checkout System", T. Kuroda et al, Proc SJCC, 38 (1971).
2. Equational Logic Programming. A semantically pure, fully
Current version: 4.2.
["Equational Logic as a Programming Language", M.J. O'Donnell,
MIT Press 1985].