TY - CPAPER AU - Nayden Prahov AU - Bogdan Prodanov AU - Kalin Dimitrov AU - Kiril Velkovsky TI - THE NEGATIVE IMPACT OF HUMAN ACTIVITIES ON UNDERWATER CULTURAL HERITAGE: CASE STUDIES FROM THE BULGARIAN BLACK SEA LITTORAL T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Informatics, Geoinformatics and Remote Sensing PY - 2021 SP - 441 EP - 450 DO - 10.5593/sgem2021/2.1/s11.89 PB - STEF92 Technology ER -