List of Articles Single allocation Open Access Article Abstract Page Full-Text 1 - Optimizing a Fuzzy Green p-hub Centre Problem Using Opposition Biogeography Based Optimization Marzieh Karimi Seyed Hamid Reza Pasandideh 10.22094/joie.2017.670.1432 20.1001.1.22519904.2018.11.1.9.9 Open Access Article Abstract Page Full-Text 2 - A Simulated Annealing Algorithm within the Variable Neighbourhood Search Framework to Solve the Capacitated Facility Location-AllocationProblem Ragheb Rahmaniani abdosalam Ghaderi Mohammad Saidi Mehrabad 20.1001.1.22519904.2012.5.10.6.2