TY  - JOUR
AU  - Joghataie, Mahboobeh
AU  - Hosseinzadeh lotfi, Farhad
AU  - Allahviranloo, ‪Tofigh
TI  - Efficiency and Return to Scale of Two-Stage network in Data Envelopment Analysis Using Additive Model
JO  - International Journal of Data Envelopment Analysis
VL  - 8
IS  - 2
SP  - 69
EP  - 78
PY  - 2020
DO  - 
ER  -