Advances and Trends in Geodesy, Cartography and Geoinformatics II : proceedings of the 11th International Scientific and Professional Conference on Geodesy, Cartography and Geoinformatics (GCG 2019). September 10-13, 2019, Demänovská Dolina, Low Tatras, Slovakia - Molčíková, Soňa; Hurčíková, Viera; Blišťan, Peter (CRC Press/Balkema, 2020)