List of Articles Norm Open Access Article Abstract Page Full-Text 1 - Ranking Efficient DMUs Using the Ideal point and Norms B. Shavazipour Open Access Article Abstract Page Full-Text 2 - The Calculation of Unit's Efficiency by Using the Interval B. Babazadeh E. Najafi M. AhadzadehNamin Y. jafari Z. Ebrahimi Open Access Article Abstract Page Full-Text 3 - Finding Outlier DMUs in Data Envelopment Analysis Mahnaz Mirbolouki