TY - CPAPER AU - Miroslav Simcak TI - OBSERVING CHANGES IN ELEVATION CONTROL POINTS T2 - 14th International Multidisciplinary Scientific GeoConference SGEM 2014, Geoinformatics, Remote Sensing, and Artificial Intelligence, Vol. 14, Book 2, Volume 2 PY - 2014 DO - 10.5593/sgem2014/b22/s9.045 PB - Stef92 Technology ER -