Selected papers that cite this one
- Dennis F. Cudia. General problems of formal grammars. Journal of the ACM, 17(1):31-43, January 1970.
- Seymour Ginsburg and Joseph Ullian. Preservation of unambiguity and inherent ambiguity in context-free languages. Journal of the ACM, 13(3):364-368, July 1966.
- Thomas N. Hibbard and Joseph Ullian. The independence of inherent ambiguity from complementedness among context-free languages. Journal of the ACM, 13(4):588-593, October 1966.
- Herman A. Maurer. A direct proof of the inherent ambiguity of a simple context-free language. Journal of the ACM, 16(2):256-260, April 1969.
- Arnold L. Rosenberg. A note on ambiguity of context-free languages and presentations of semilinear sets. Journal of the ACM, 17(1):44-50, January 1970.
- Arnold L. Rosenberg. On the independence of real-time definability and certain structural properties of context-free languages. Journal of the ACM, 15(4):672-679, October 1968.
- Arnold L. Rosenberg. Real-time definable languages. Journal of the ACM, 14(4):645-662, October 1967.
Selected references
- David G. Cantor. On the ambiguity problem of Backus systems. Journal of the ACM, 9(4):477-479, October 1962.
- Seymour Ginsburg and H. Gordon Rice. Two families of languages related to ALGOL. Journal of the ACM, 9(3):350-371, July 1962.
- Seymour Ginsburg and G. F. Rose. Operations which preserve definability in languages. Journal of the ACM, 10(2):175-195, April 1963.
- Stephen Scheinberg. Note on the Boolean properties of context free languages. Information and Control, 3(4):372-375, December 1960.