1. Adamson, J. K., Hornung, M., Pyatt, D. G. and Anderson, A. R.: 1987, ?Changes in Solute Chemistry of Drainage Waters Following the Clearfelling of a Sitka Spruce Plantation?,Forestry,60, 165?177.
2. Adamson, J. K. and Hornung, M.: 1990, ?The Effect of Clearfelling a Sitka Spruce (Picea sitchensis) Plantation on Solute Concentrations in Drainage Water?,J. Hydrol.,116, 287?298.
3. Alien, S. E., Grimshaw, H. M., Parkinson, J. A. and Quarmby, C.: 1974,Chemical Analysis of Ecological Materials, Blackwell, Oxford.
4. Anderson, A. R., Pyatt, D. G. and Stannard, J. P.: 1990,Forestry,60, 165
5. Blackie, J. R., Ford, E. D., Home, J. E. M., Kinsman, D. J. J., Last, F. T. and Moorhouse, P.: 1980,Environmental Effects of Deforestation. An Annotated Bibliography. Freshwater Biological Association Occasional Publication No.10, Ambleside.