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2. Andersson, P., Borg, H. and Kärrhage, P.: 1991,Effects of liming on mercury in fish ? the status in 19 manipulated lakes. Swedish EPA, report 3883, 45 pp (in Swedish, English summary).
3. Andersson, P., Grahn, P., Hörnström, E., Nyberg, P. and Dahlquist, K.: 1989,Liming and fertilizing of L. Rammsjön and L. Ämten ? an attempt to reduce the Hg-concentration in fish. Swedish EPA, report 3584, 119 pp (in Swedish).
4. Björklund, I., and Norling, L.: 1979,Environmental effects of deposition of Hg in lakes in the Värmland/Kilsbergen and West Coast areas. Swedish EPA, report 1090 (in Swedish).
5. Björklund, I., Borg, H. and Johansson, K.: 1984,Ambio 13, 118?121.