TY - CPAPER AU - Nikolay Miloshev AU - Petya Trifonova AU - Ivan Georgiev TI - IMPORTANCE OF THE NATIONAL GEOINFORMATION CENTER FOR NATURAL AND ANTHROPOGENIC RISKS PREVENTION IN BULGARIA T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining PY - 2020 SP - 583 EP - 590 DO - 10.5593/sgem2020/1.2/s05.074 PB - STEF92 Technology ER -