TY - CPAPER AU - Mariam Bozhilova AU - Miglena Zhiyanski TI - EFFICIENCY OF GREEN ROOFS WITH DIFFERENT DEPTH AND WAYS TO REFLECT IT IN THE LEGISLATIVE REQUIREMENTS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Nano, Bio, Green and Space: Technologies for Sustainable Future PY - 2020 SP - 561 EP - 566 DO - 10.5593/sgem2020/6.1/s27.072 PB - STEF92 Technology ER -