@article{article858,
  title = {Gains of six sigma projects devoted to competitiveness: Analysis of it’s implementations in the manufacturing industry},
  author = {ALTUĞ, M. and NALBANT, M.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2011},
  volume = {29},
  pages = {301-315},
  doi = {}
}