Miljana Todorovic Drakul, Oleg Odalovic, Sanja Grekulovic (2017). CALIBRATION OF THE LEVELLING RODS USING LASER INTERFEROEMTER. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing, 147-154. https://doi.org/10.5593/sgem2017/22/s09.019