Azadeh, M. A. , , Kokabi, R. , and Hallaj, D. . "Credibility-Based Fuzzy Mathematical Programming for Bi-Objective Capacitated Partial Facility Interdiction with Fortification and Demand Outsourcing Model", Scientia Iranica, 24, 2, 2017, 778-793. doi: 10.24200/sci.2017.4061