On context-free programmed grammars

Abraham, 1965, Some questions of phrase structure grammars, Comput. Linguistics, 4, 61 Aho, 1968, Indexed grammars—An extension of context- free grammars, J.ACM, 15, 647, 10.1145/321479.321488 Aho, 1986 Aho, 1972 Fu, 1982, Attributed grammars for pattern recognition—A general (syntactic-semantic) approach, 18 Ginsburg, 1968, Control sets on grammars, Math. Systems Theory, 2, 233, 10.1007/BF01692513 Hopcroft, 1969 Johnson, 1982, Non-syntactic attribute flow in language based editors, 185 1980, Vol. 94 Knuth, 1968, Semantics of context-free languages, Math. Systems Theory J., 2, 127, 10.1007/BF01692511 Rosenkrantz, 1967, Programmed grammars—A new device for generating formal languages, 10.1109/FOCS.1967.28 Rosenkrantz, 1969, Programmed grammars and classes of formal languages, J.ACM, 16, 108, 10.1145/321495.321504 Salomaa, 1970, Periodically time-variant context-free grammars, Inform. Control, 17, 294, 10.1016/S0019-9958(70)90464-X