TY - JOUR AU - Menni, Assia AU - Chaabane, Djamal TI - A possibilistic optimization over an integer efficient set within a fuzzy environment JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2020 SP - 1437 EP - 1452 VL - 54 IS - 5 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2019077/ DO - 10.1051/ro/2019077 LA - en ID - RO_2020__54_5_1437_0 ER -