1. Aastrup, M., Johnson, J., Bringmark, E., Bringmark, L. and Iverfeldt, Å.: 1991,Water, Air and Soil Pollut. 56, 155.
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3. Bishop, K. H.: 1991,Episodic increase in stream acidity, catchment flow pathways and hydrograph separation, Doctoral Dissertation, University of Cambridge. 246 pp.
4. Bishop, K. H., Lee, Y. H., Pettersson, C., and Allard, B.: 1995, this volume.
5. Boudou, A., and Ribeyre, F.: 1990, Aquatic Ecotoxicology: Fundamental Concepts and Methodologies, Boca Raton: CRC Press.