@inproceedings{sgem2026paper, title = {INTEGRATION OF GNSS-DERIVED ROAD DATA AND DIGITAL TERRAIN MODELS FOR THREE-DIMENSIONAL SURFACE RECONSTRUCTION IN AN UNDEFINED HEIGHT SYSTEM}, author = {Radostin Mihaylov and Hristiyan Dimitrov}, booktitle = {SWS 2026 Conference Preprints}, year = {2026}, pages = {}, publisher = {STEF92 Technology}, doi = {} }