TY  - JOUR
AU  - صفری, حسین 
AU  - خلوصی, محمد هادی 
AU  - خلوصی, سمیه 
TI  - Evaluation and selection of development projects of steel using  grey systems theory, vague sets theory, and zero one goal programming: A hybrid approach 
JO  - Modiriat-e- farda
VL  - 11
IS  - 31
SP  - 1
EP  - 10
PY  - 2014
DO  - 
ER  -