@article{ITA_2008__42_2_285_0,
     author = {Ouardi, Faissal and Ziadi, Djelloul},
     title = {Efficient weighted expressions conversion},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {285--307},
     publisher = {EDP-Sciences},
     volume = {42},
     number = {2},
     year = {2008},
     doi = {10.1051/ita:2007035},
     mrnumber = {2401263},
     zbl = {1157.68042},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/ita:2007035/}
}