no. 1
The relation of two patterns with comparable languages patterns
RAIRO. Informatique théorique et applications, STACS 88, Tome 23 (1989) no. 1, pp. 45-57 
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     author = {Fil\'e, Gilberto},
     title = {The relation of two patterns with comparable languages patterns},
     journal = {RAIRO. Informatique th\'eorique et applications},
     pages = {45--57},
     year = {1989},
     publisher = {EDP-Sciences},
     volume = {23},
     number = {1},
     mrnumber = {990067},
     zbl = {0665.68060},
     language = {en},
     url = {https://numdam.org/item/ITA_1989__23_1_45_0/}
}
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Filé, Gilberto. The relation of two patterns with comparable languages patterns. RAIRO. Informatique théorique et applications, STACS 88, Tome 23 (1989) no. 1, pp. 45-57. https://numdam.org/item/ITA_1989__23_1_45_0/

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