1. STREAMSL: Spatial Tools for River Basins and Environment and Analysis of Management options, application for Sea Level Rise;Aerts;manual, RA-97,1997
2. World Climate Data disk;CRU,1992
3. RHINEFLOW: an integrated GIS water balance model for the River Rhine;Deursen,1994
4. Crop water requirements;FAO,1992
5. Water in Crisis, a guide to the world's fresh water resources;Gleick,1993