TY  - JOUR
AU  - Tohidnia, S.
AU  - Tohidi, G.
TI  - Estimating multi-period global cost efficiency and productivity change of systems with network structures
JO  - Journal of Industrial Engineering International
VL  - 16
IS  - 1
SP  - 171
EP  - 179
PY  - 2020
DO  - 
ER  -