%0 Journal Article %A Heydari, Tahereh, seyedhosseini, seyed mohammad, Makui, Ahmad %T Developing and solving a two-stage Optimization Model for project Portfolio selection and scheduling in uncertain conditions %J Modiriat-e- farda %V 16 %N 53 %P 0-0 %D 2018 %R %U https://rimag.ir/fa/Article/25334