TY - CPAPER AU - Magdalena Tutak AU - Jaroslaw Brodny TI - DEGREE OF USE OF ALTERNATIVE SOURCES FOR ENERGY PRODUCTION FOR THE ECONOMICAL AIMS IN EU COUNTRIES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies PY - 2017 SP - 635 EP - 642 DO - 10.5593/sgem2017h/43/s29.080 PB - STEF92 Technology ER -