Some Remarks on Lookup of Structured Variables CACM April, 1974 Abrahams, P. W. PL/1, symbol table, structured variables, qualified references, compilers 4.12 4.22 CA740411 JB February 1, 1978 10:34 AM 2659 4 2659 2449 5 2659 2659 5 2659 2659 5 2659 2659 5 2659