Jean Berstel
Sur la densité asymptotique de langages formels
ICALP, 1972.
@inproceedings{ICALP-1972-Berstel,
author = "Jean Berstel",
booktitle = "{Proceedings of the Colloquium on Automata, Languages and Programming}",
isbn = "0-7204-2074-1",
pages = "345--358",
title = "{Sur la densité asymptotique de langages formels}",
year = 1972,
}