TY - CPAPER AU - Igor Leššo TI - EVALUATION OF FUNCTIONAL ANALYSIS IN OPTIMAL CONTROL OF ROTARY DRILLING T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference PY - 2011 DO - 10.5593/sgem2011/s06.107 PB - Stef92 Technology ER -