TY - JOUR AU - Zamani, Reza TI - An innovative four-layer heuristic for scheduling multi-mode projects under multiple resource constrains JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2019 SP - 1309 EP - 1330 VL - 53 IS - 4 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2019012/ DO - 10.1051/ro/2019012 LA - en ID - RO_2019__53_4_1309_0 ER -