Nikolay Dimitrov, Ivan Georgiev, Radoslav Nakov (2020). MONITORING OF GEODYNAMIC PROCESSES IN THE AREA AROUND SOFIA. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Informatics, Geoinformatics and Remote Sensing, 79-86. https://doi.org/10.5593/sgem2020/2.2/s09.010