Daniel J. Rosenkrantz. Matrix Equations and Normal Forms for Context-Free Grammars. Journal of the ACM, 14(3):501-507, 1967. [doi]
@article{Rosenkrantz67:0,
title = {Matrix Equations and Normal Forms for Context-Free Grammars},
author = {Daniel J. Rosenkrantz},
year = {1967},
doi = {10.1145/321406.321412},
url = {http://doi.acm.org/10.1145/321406.321412},
tags = {context-aware, grammar},
researchr = {https://researchr.org/publication/Rosenkrantz67%3A0},
cites = {0},
citedby = {0},
journal = {Journal of the ACM},
volume = {14},
number = {3},
pages = {501-507},
}