TY - CPAPER AU - International authors TI - 17th International Multidisciplinary Scientific GeoConference SGEM 2017, Energy and Clean Technologies, Vol. 17, Book 4, Volume 1 T2 - International Multidisciplinary Scientific GeoConference SGEM 2017 PY - 2017 DO - 10.5593/sgem2017/41 PB - STEF92 Technology ER -