TY - CPAPER AU - International authors TI - 11th International Multidisciplinary Scientific GeoConference SGEM 2011, Conference Proceedings, Vol. 11, Volume 3 T2 - International Multidisciplinary Scientific GeoConference SGEM 2011 PY - 2011 DO - 10.5593/sgem2011/v3 PB - STEF92 Technology ER -