TY  - JOUR
AU  - Yousefikhoshbakht, Majid
AU  - Didehvar, Frazad
AU  - Rahmati, Farhad
TI  - A Mixed Integer Programming Formulation for the Heterogeneous Fixed Fleet Open Vehicle Routing Problem
JO  - Journal of Optimization in Industrial Engineering
VL  - 8
IS  - 18
SP  - 37
EP  - 46
PY  - 2015
DO  - 
ER  -