Katarina Feriancikova. "QUALITY CONTROL OF ROTARY DRILLING PROCESS OF ROCKS BY SHEWHART CHARTS USING THE ACCESSORY VIBRATION SIGNAL." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining, 2016. https://doi.org/10.5593/sgem2016/b11/s02.121