ESTIMATION OF NORMAL AND GEOPOTENTIAL HEIGHT DIFFERENCES DERIVED BY GRAVITY DATA FROM GLOBAL GEOPOTENTIAL MODELS FOR THE TERRITORY OF BULGARIA
Tatyana Lambeva · SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Informatics, Geoinformatics and Remote Sensing
