1. Almer, B. (1972) The effects of acidification on fish stocks and lakes on the west coast of Sweden. Inst. Freshwat. Res Drottningholm Inform. 12, 47 pp.
2. Almer, B., Dickson, W., Eckström, C. and Hornström, E. (1978) Sulfur pollution and the aquatic ecosystem. In Nriagu, J.O., ed. Sulfur in the Environment. Part II: Ecological impacts. New York: John Wiley, pp. 271?311.
3. Baker, J.P. and Schofield, C.L. (1980) Aluminium toxicity to fish as related to acid precipitation and Adirondack surface water quality. In Drabløs, D., and Tollan, A., eds. Ecological Impact of Acid Precipitation (Proc. Int. Conf. SNSF Project Sandefjord, Norway 11?14 March 1980). Oslo-Ås: SNSF Project, pp. 292?3.
4. Baker, J.P. and Schofield, C.L. (1982) Aluminium toxicity to fish in acidic waters. Water Air Soil Pollut. 18, 289?309.
5. Beamish, R.J. (1974) Loss of fish populations from unexploited remote lakes in Ontario, Canada as a consequence of atmospheric fallout of acid. Water Res. 8, 85?95.