SGEM SGEM 2018. 18th International Multidisciplinary Scientific GeoConference. Volume 18. Informatics, Geoinformatics and Remote Sensing : conference proceedings. Albena, Bulgaria, 2 July - 8 July 2018 Issue 2.2 Geodesy and Mine Surveying. -- 1. vyd. -- Sofia : STEF 92 Technology, 2018. -- 1130 s. -- ISBN : 978-619-7408-40-9. -- ISSN : 1314-2704. -- 10.5593/sgem2018/2.2.