Jan van Leeuwen. A Useful Lemma for Context-Free Programmed Grammars. Acta Informatica, 11:373-386, 1979.
@article{Leeuwen79,
title = {A Useful Lemma for Context-Free Programmed Grammars},
author = {Jan van Leeuwen},
year = {1979},
tags = {context-aware, grammar},
researchr = {https://researchr.org/publication/Leeuwen79},
cites = {0},
citedby = {0},
journal = {Acta Informatica},
volume = {11},
pages = {373-386},
}