@article{
  author = {soheili, K., Fattahi, SH., zabihi dan, M.S, hadizadegan, M.},
  title = {The Relationship between Efficiency and Industrial Concentration of Food and Beverage Industries in Iran},
  journal = {Economic  Modeling},
  year = {2015},
  volume = {8},
  number = {27},
  pages = {37-51},
  doi = {}
}