@article{
  author = {Alinezhad, Alireza, Mohammadpour, Parviz, Esfandiari, Nima},
  title = {Evaluation and Improvement in Company Manufacturing Processes based on the Six-sigma Methodology},
  journal = {Journal of Development & Evolution Mnagement},
  year = {2009},
  volume = {1},
  number = {0},
  pages = {75-84},
  doi = {}
}