@inproceedings{sgem2018s01022,
  title = {NON-PRODUCTIVE TIME - NPT AS A SELECTING CRITERION OF BOTTOM HOLE ASSEMBLY - BHA},
  author = {Rafał Wiśniowski},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th SGEM International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration And Mining},
  year = {2018},
  pages = {179-184},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2018v/1.5/s01.022}
}