1. Institute of Hydraulics and Rural Water Management, Department of Water, Atmosphere and Environment; University of Natural Resources and Life Sciences (BOKU); Gregor-Mendel-Straße 33 Vienna 1180 Austria
2. Department of Water Resources, Faculty of Agrobiology, Food and Natural Resources; Czech University of Life Sciences; Kamýcká 129 Praha 6 − Suchdol 165 21 Czech Republic