TY  - JOUR
AU  - Sedighi Hassan Kiyadeh, Majid
AU  - Saati Mohtadi, Saber
AU  - Kordrostami, Sohrab
TI  - Determining the Russell Technical Efficiency of measure in the Presence of Flexible Factors based on slack variables
JO  - Journal of New Researches in Mathematics
VL  - 6
IS  - 6
SP  - 5
EP  - 16
PY  - 2021
DO  - 
ER  -