@article{RO_1999__33_4_481_0,
     author = {Demange, Marc and Paschos, Vangelis Th.},
     title = {Asymptotic differential approximation ratio : definitions, motivations and application to some combinatorial problems},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {481--507},
     publisher = {EDP-Sciences},
     volume = {33},
     number = {4},
     year = {1999},
     mrnumber = {1735449},
     zbl = {0961.90084},
     language = {en},
     url = {http://www.numdam.org/item/RO_1999__33_4_481_0/}
}