TY - CPAPER AU - Nadezhda Doseva TI - ENERGY AND EXERGY ANALYSES OF COGENERATION SYSTEM WITH A BIOGAS ENGINE T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 14th SGEM GeoConference on ENERGY AND CLEAN TECHNOLOGIES PY - 2014 DO - 10.5593/sgem2014/b41/s17.023 PB - Stef92 Technology ER -