Błażej Mach and Michał Skrzypek 2022. Bathymetric Measurements of a Retention Reservoir using Integrated Hydrographic and Photogrammetric Techniques. Communications - Scientific letters of the University of Zilina. 24, 1 (Jan. 2022), E19-E27. DOI:https://doi.org/10.26552/com.C.2022.1.E11-E18.