%0 Journal Article %A Menni, Assia %A Chaabane, Djamal %T A possibilistic optimization over an integer efficient set within a fuzzy environment %J RAIRO - Operations Research - Recherche Opérationnelle %D 2020 %P 1437-1452 %V 54 %N 5 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro/2019077/ %R 10.1051/ro/2019077 %G en %F RO_2020__54_5_1437_0