TY - CPAPER AU - Elena Peneva TI - PRELIMINARY RESULTS OF CONNECTION BETWEEN TWO STATE LEVELING NETWORKS VIA CROSS-BORDER LEVELLING MEASUREMENTS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Informatics, Geoinformatics and Remote Sensing PY - 2019 SP - 257 EP - 266 DO - 10.5593/sgem2019/2.2/s09.032 PB - STEF92 Technology ER -