@inproceedings{sgem2013s08008, title = {COMPUTING AND VERIFYING THE LAND SURFACE WITHOUT VISIBILITY BY USING GPS AND CLASSIC PROCEDURES}, author = {Luminita Livia Barliba}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on INFORMATICS, GEOINFORMATICS AND REMOTE SENSING}, year = {2013}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2013/bb2.v1/s08.008} }