TY  - JOUR
AU  - Shahghobadi, Saeid
AU  - Moradi, Farhad
TI  - Robust efficiency in data envelopment analysis with VRS technology
JO  - Journal of New Researches in Mathematics
VL  - 4
IS  - 1
SP  - 91
EP  - 100
PY  - 2018
DO  - 
ER  -