@inproceedings{sgem2017s21096,
  title = {SIX SIGMA AS THE METHOD OF PROCESSES- EFFICIENCY IMPROVEMENT IN ENERGY INDUSTRY},
  author = {Grazyna Wojcik},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2017 17th International Multidisciplinary Scientific GeoConference},
  year = {2017},
  pages = {773-780},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/53/s21.096}
}