@inproceedings{sgem2026paper, title = {MULTI-SOURCE DATA INTEGRATION OF UAS AND TERRESTRIAL CLOSE-RANGE PHOTOGRAMMETRY FOR COMPREHENSIVE 3D RECONSTRUCTION OF THE "ST. JOHN LETNI" CHAPEL}, author = {Tsvetelina Atanasova-Evdenova and Nikolay Angelov and Yana Lipiyska}, booktitle = {SWS 2026 Conference Preprints}, year = {2026}, pages = {}, publisher = {STEF92 Technology}, doi = {} }