TY - CPAPER AU - Anton Ivanov TI - ANALYSIS OF 90 YEARS SEA LEVEL DATA AT VARNA TIDE GAUGE STATION T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Informatics, Geoinformatics and Remote Sensing PY - 2019 SP - 11 EP - 16 DO - 10.5593/sgem2019/2.2/s09.002 PB - STEF92 Technology ER -