%0 Journal Article %A Maghsoudlou, Hamidreza %A Afshar-Nadjafi, Behrouz %A Niaki, Seyed Taghi Akhavan %T Preemptive multi-skilled resource constrained project scheduling problem with hard/soft interval due dates %J RAIRO - Operations Research - Recherche Opérationnelle %D 2019 %P 1877-1898 %V 53 %N 5 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro/2018103/ %R 10.1051/ro/2018103 %G en %F RO_2019__53_5_1877_0