G. Popescu. "MONITORING THE PHENOMENON OF DISPLACEMENT AND SURFACE DEFORMATION USING TOPOGRAPHICAL METHODS AT LIVEZENI MINE." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference, 2011. https://doi.org/10.5593/sgem2011/s03.128