Jaroslav Braun. "TESTING PULSE DISTANCE METERS OF TOTAL STATIONS TOPCON GPT-7501 OVER SHORT DISTANCES." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Informatics, Geoinformatics and Remote Sensing, 2016. https://doi.org/10.5593/sgem2016/b22/s09.076