On regularity of context-free languages
@article{EHR83, author = {Ehrenfeucht, Andrzej and Haussler, David and Rozenberg, Grzegorz}, doi = {https://doi.org/10.1016/0304-3975(82)90124-4}, issn = {0304-3975}, journal = {Theoretical Computer Science}, note = {Special Issue Ninth International Colloquium on Automata, Languages and Programming (ICALP) Aarhus, Summer 1982}, number = {3}, pages = {311-332}, sha256 = {A2D41137E80F46C1B60255DA417462A26151D8D7D07A65185A4ABBD4BCE6CF7E}, title = {On regularity of context-free languages}, url = {https://www.sciencedirect.com/science/article/pii/0304397582901244}, volume = {27}, year = {1983} }