@article{
  author = {Nasseri, S.H., Yazdani, A., Darvishi Salokolaei, D.},
  title = {A Primal Simplex Algorithm for Solving Linear Programming Problem with Grey Cost Coefficients},
  journal = {Journal of New Researches in Mathematics},
  year = {2016},
  volume = {1},
  number = {4},
  pages = {115-135},
  doi = {}
}