@article{
  author = {صفری, حسین , خلوصی, محمد هادی , خلوصی, سمیه },
  title = {Evaluation and selection of development projects of steel using  grey systems theory, vague sets theory, and zero one goal programming: A hybrid approach },
  journal = {Modiriat-e- farda},
  year = {2014},
  volume = {11},
  number = {31},
  pages = {1-10},
  doi = {}
}