@article{ITA_1994__28_3-4_233_0,
     author = {Mateescu, A. and Salomaa, A.},
     title = {Finite degrees of ambiguity in pattern languages},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {233--253},
     publisher = {EDP-Sciences},
     volume = {28},
     number = {3-4},
     year = {1994},
     mrnumber = {1282446},
     zbl = {0883.68076},
     language = {en},
     url = {http://archive.numdam.org/item/ITA_1994__28_3-4_233_0/}
}