Name Amir Hossein Ghapanchi Affiliation پژوهشگر خارجی Degree _ Website Email — JournalPaper Presentation Speech WorkShop Book Innovation GrantAttraction Thesis Festival FinishedProject Sales Art StandardCreation TitleJournal 1 Proposing a model for optimising planned lead-times and periodicity in MRP systems under uncertainty International Journal of Services and Operations Management