Ernst L. Leiss. Implicit Language Equations: Existence and Uniqueness of Solutions. Theoretical Computer Science, 145(1&2):71-93, 1995. [doi]
@article{Leiss95:0,
title = {Implicit Language Equations: Existence and Uniqueness of Solutions},
author = {Ernst L. Leiss},
year = {1995},
doi = {10.1016/0304-3975(94)00176-J},
url = {http://dx.doi.org/10.1016/0304-3975(94)00176-J},
researchr = {https://researchr.org/publication/Leiss95%3A0},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {145},
number = {1&2},
pages = {71-93},
}