e> (Subset PL/I, k=1..8) A series of ef="module.php?name=Lexikon&file=search&eid=1&query=PL/I">PL/I subsets, simplified for student use. ["SP/k: A System for Teaching Computer Programming", R.C. Holt et al, CACM 20(5):301-309, May 1977]. (1997-12-27)