TY - CPAPER AU - Irena Aleksandrova AU - Dimcho Solakov AU - Emil Oynakov TI - COMPARISON OF NOTSSI NETWORK STATIONS- CORRECTIONS, AFTER ANALYSIS OF THE SEISMIC NOISE AND EARTHQUAKES, USING THE METHOD FOR CALCULATING THE RATIO OF THE AMPLITUDE SPECTRUES OF H-V SIGNAL COMPONENTS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Science and Technologies in Geology, Exploration And Mining PY - 2021 SP - 435 EP - 442 DO - 10.5593/sgem2021/1.1/s05.080 PB - STEF92 Technology ER -