@article{
  author = {Behzadi, M. H., Nematollahi, N/, Mirbolouki, M.},
  title = {Ranking Ecient DMUs with Stochastic Data by
 Considering Inecient Frontier},
  journal = {International Journal of Industrial Mathematics},
  year = {2009},
  volume = {1},
  number = {3},
  pages = {219-226},
  doi = {}
}