List of Articles Binary programming Open Access Article Abstract Page Full-Text 1 - Modeling IT project outsourcing decisions using group decision making methods Mohamadreza Motadel mohammad ali Afshar Kazemi Sara Dastbaz Open Access Article Abstract Page Full-Text 2 - Determining the Russell Technical Efficiency of measure in the Presence of Flexible Factors based on slack variables Majid Sedighi Hassan Kiyadeh Saber Saati Mohtadi Sohrab Kordrostami Open Access Article Abstract Page Full-Text 3 - A Model for Project Selecting with Limited Resources in Data Envelopment Analysis with Input and Output Fuzzy M. A. jahantighi Open Access Article Abstract Page Full-Text 4 - A new binary model for university examination timetabling: a case study Alireza Rashidi Komijan Mehrdad Nouri Koupaei