TY - CPAPER AU - Adriana Ion TI - ASSESSMENT OF NATURAL RADIOACTIVITY LEVEL IN ROCKS OF DITRAU ALKALINE MASSIF AREA , EASTERN CARPATHIANS, ROMANIA T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference PY - 2012 DO - 10.5593/sgem2012/s20.v5013 PB - Stef92 Technology ER -