List of Articles Extreme efficient Open Access Article Abstract Page Full-Text 1 - Ranking of Non-Extreme Efficient units based on multi ideal DMUs in PPS Alireza Salehi Farhad Hosseinzadeh lotfi Mohsen Rostamy-Malkhalifeh Open Access Article Abstract Page Full-Text 2 - An approach to rank efficient DMUs in DEA based on combining Manhattan and infinity norms Shokrollah Ziari Manaf Sharifzadeh Open Access Article Abstract Page Full-Text 3 - رتبه بندی DMU ها کارآمد با استفاده از ضریب تغییرات وزن در DEA Mojtaba Ziari Shokrollah Ziari Open Access Article Abstract Page Full-Text 4 - Ranking efficient DMUs using the infinity norm and virtual inefficient DMU in DEA Shokrollah Ziari Manaf Sharifzadeh Open Access Article Abstract Page Full-Text 5 - Ranking efficient DMUs using minimizing distance in DEA Shokrollah Ziari Sadigh Raissi Open Access Article Abstract Page Full-Text 6 - Ranking extreme and non-extreme efficient DMUs on the basis of MPSS in DEA Javad Gerami Javad Vakili