no. 3-4
Finite degrees of ambiguity in pattern languages
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 28 (1994) no. 3-4, pp. 233-253. 
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     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://www.numdam.org/item/ITA_1994__28_3-4_233_0/}
}
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Mateescu, A.; Salomaa, A. Finite degrees of ambiguity in pattern languages. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 28 (1994) no. 3-4, pp. 233-253. http://www.numdam.org/item/ITA_1994__28_3-4_233_0/

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