@inproceedings{sgem2017s07070,
  title = {SHEWHART CONTROL CHARTS AS A TOOL FOR ANALYZING THE REVOLUTIONS OF DRILLING EQUIPMENT},
  author = {Patrik Flegner and Jan Kacur and Milan Durdan and Marek Laciak},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing},
  year = {2017},
  pages = {549-556},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/21/s07.070}
}