فهرست مقالات amirhossein yadollahi مقاله 1 - Centralized resource allocation with the possibility of downsizing to evaluate two-stage production system with shared inputs 20.1001.1.25885723.2021.13.2.1.6 Amir Yadollahi رضا کاظمی متین Farhad Hosseinzadeh Lotfi Iranian Journal of Optimization , شماره 2 , سال 13 , بهار 2021