1. Modelling nitrogen transport and retention in the catchments of southern Sweden;Arheimer;Ambio,1998
2. Nutrient contents of drainwater and drainage ditchwater on agriculturelly used areas in the drinking water territory of the River Kösterbeck;Bockholt;Zeitschrift für Kulturtechnik und Landentwicklung,1992
3. Plant sociology;Braun-Blanquet,1932
4. Monitoring change in hydrological systems;Burt;Sci. Total Environ.,2003
5. Principles of flow of water;Chaudhry,1996