TY - CPAPER AU - A. Manowska AU - B. Bluszcz TI - PRIMARY AND FINAL ENERGY MIX AND ENERGY EFFICIENCY T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Nano, Bio, Green and Space: Technologies for Sustainable Future PY - 2021 SP - 197 EP - 204 DO - 10.5593/sgem2021v/6.2/s27.29 PB - STEF92 Technology ER -