## Jan van Leeuwen

*A Generalisation of Parikh’s Theorem in Formal Language Theory*

ICALP, 1974.

@inproceedings{ICALP-1974-Leeuwen, author = "Jan van Leeuwen", booktitle = "{Proceedings of the Second Colloquium on Automata, Languages and Programming}", doi = "10.1007/3-540-06841-4_49", isbn = "3-540-06841-4", pages = "17--26", publisher = "{Springer-Verlag}", series = "{Lecture Notes in Computer Science}", title = "{A Generalisation of Parikh’s Theorem in Formal Language Theory}", volume = 14, year = 1974, }