Jozef Gruska. A Few Remarks on the Index of Context-Free Grammars and Languages. Inf. Comput., 19(3):216-223, October 1971.
@article{Gruska71b, title = {A Few Remarks on the Index of Context-Free Grammars and Languages}, author = {Jozef Gruska}, year = {1971}, month = {October}, tags = {context-aware, grammar}, researchr = {https://researchr.org/publication/Gruska71b}, cites = {0}, citedby = {0}, journal = {Inf. Comput.}, volume = {19}, number = {3}, pages = {216-223}, }