فهرس المقالات Pareto-optimal solutions حرية الوصول المقاله صفحة الملخص نص كامل 1 - A new approach to solving multi-follower multi-objective linear bilevel programming problems Habibe Sadeghi Farzaneh Anis Hosseini 10.22094/joie.2022.543647.1512 حرية الوصول المقاله صفحة الملخص نص كامل 2 - Building a Multi-Objective Model for Multi-Product Multi-Period Production Planning with Controllable Processing Times: A Real Case Problem Mir Bahadorgholi Aryanezhad Mehdi Karimi-Nasab Seyed Mohammad Taghi Fatemi Ghomi