List of Articles Two-stage network Open Access Article Abstract Page Full-Text 1 - دسته بندی اندازه های انعطاف پذیر در شبکه دو مرحله ای DEA سیده نسرین حسینی منفرد محمدرضا مظفری محسن رستمی مال خلیفه 10.30495/ijim.2022.19684 Open Access Article Abstract Page Full-Text 2 - Performance assessment of Two-stage network structures with the presence of contextual variables Peiman Alidoust Zoghi Maryam Nematizadeh Maryeh Nematizadeh Open Access Article Abstract Page Full-Text 3 - Outputs Estimation and Efficiency Improvement of Two-Stage Network Systems Zahra Shiri Daryani Sahbnam Rzavyan