%0 Journal Article %A Monnot, Jérôme %T Differential approximation of NP-hard problems with equal size feasible solutions %J RAIRO - Operations Research - Recherche Opérationnelle %D 2002 %P 279-297 %V 36 %N 4 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/ro:2003008/ %R 10.1051/ro:2003008 %G en %F RO_2002__36_4_279_0