List of Articles Uncertainty Open Access Article Abstract Page Full-Text 1 - Generation Expansion Planning with presenting a two-level model in order to cover the uncertainty in the competitive market Saeed Shahbazian Saeed Kharrati Abdollah Rastgou Open Access Article Abstract Page Full-Text 2 - A new robust optimization approach to most efficient formulation in DEA Reza Akhlaghi Mohsen Rostamy-Malkhalifeh Alireza Amirteimoori Sohrab Kordrostami