- J. Gruska. Some
classifications of context-free languages. Information and
Control, 14(2):152-179, February 1969.
References.
- J. Gruska. Complexity and
unambiguity of context-free grammars and languages.
Information and Control, 18(5):502-519, June 1971.
- J. Gruska. A few remarks on
the index of context-free grammars and languages. Information
and Control, 19(3):216-223, October 1971.
- K. Culik II, J. Gruska, and A. Salomaa. Systolic trellis automata:
Stability, decidability and complexity. Information and
Control, 71(3):218-230, December 1986.
Citations.
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