Application of geographic information systems in hydrology and water resources management : proceedings of the HydroGIS'96 conference held in Vienna, Austria, from 16 to 19 April 1996 / jointly organized by: Institut für Wasserwirtschaft, Hydrologie und Konstruktiven Wasserbau, Universität für Bodenkultur, Vienna ; the International Commission on Groundwater (ICGW) of the International Association of Hydrological Sciences (IAHS) ; the International Committee on Remote Sensing and Data Transmission (ICRSDT) of IAH ; the United Nations Educational, Scientific and Cultural Organization (UNESCO), Division of Water Sciences. Ed. by K. Kovar; H. P. Nachtnebel