List of Articles Open Access Article Abstract Page Full-Text 1 - A framework for the numerical solution of Klein–Gordon Eequations Using Three New Collocation Methods Bahareh Sadeghi Open Access Article Abstract Page Full-Text 2 - Fuzzy Cross Efficiency Measurement for Two-Stage Network DEA Abdol Hossein Tajik Yabr S. Esmaeil Najafi Zohreh Moghaddas Parisa Shahnazari Shahrezaei