%0 Journal Article %A Gueham, Assia %A Nagih, Anass %A Haddadene, Hacene Ait %A Masmoudi, Malek %T Graph coloring approach with new upper bounds for the chromatic number: team building application %J RAIRO - Operations Research - Recherche Opérationnelle %D 2018 %P 807-818 %V 52 %N 3 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/ro/2016069/ %R 10.1051/ro/2016069 %G en %F RO_2018__52_3_807_0