1. Aastrup, M., Johnson, J., Bringmark, E., Bringmark, L. and Iverfeldt, Å.: 1991,Water, Air and Soil Pollut.56, 155.
2. Bishop, K.: 1994,Return Flow in Till Hillslopes. Swedish University of Agricultural Sciences, Department of Forest Ecology, Report Series No. 25, 36 pp.
3. Bishop, K. H., Grip, H., and O'Neill, A.: 1990,J. Hydrol. 116, 35?61.
4. Bishop, K. H., Lee, Y. H., Pettersson, C., and Allard, B.: 1995a, this volume.
5. Bishop, K. H., Lee, Y. H., Pettersson, C., and Allard, B.: 1995b, this volume.