TY  - JOUR
AU  - Firoozishahmirzadi, Parisa
TI  - Ranking Efficient Decision Making Units in Data Envelopment Analysis based on Changing Reference Set
JO  - International Journal of Data Envelopment Analysis
VL  - 8
IS  - 1
SP  - 21
EP  - 26
PY  - 2020
DO  - 
ER  -