@article{
  author = {Malekmohammadi, N., Alimohammadizadeh Noughi, H.},
  title = {Methods of Optimization in Imprecise Data Envelopment Analysis},
  journal = {International Journal of Data Envelopment Analysis},
  year = {2013},
  volume = {1},
  number = {2},
  pages = {55-59},
  doi = {}
}