Volume & Issue: Volume 12, Issue 1, Winter 2019 
1. A two-stage robust model for portfolio selection by using goal programming

Pages 1-17

mostafa abdollahi moghadam; seyed babak ebrahimi; Donya Rahmani


3. Location optimization of agricultural residues-based biomass plant using Z-number DEA

Pages 39-65

Niloufar Akbarian Saravi; Reza Yazdanparast; Omid Momeni; Delaram Heydarian; Fariborz Jolai