@article{RO_2002__36_3_237_0,
     author = {Demange, Marc and Paschos, Vangelis},
     title = {Autour de nouvelles notions pour l'analyse des algorithmes d'approximation : formalisme unifi\'e et classes d'approximation},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {237--277},
     publisher = {EDP-Sciences},
     volume = {36},
     number = {3},
     year = {2002},
     doi = {10.1051/ro:2003005},
     zbl = {1089.68668},
     mrnumber = {1988279},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1051/ro:2003005/}
}