References
- Dovland, H., Joranger, E. & Semb, A., 1976: Deposition of air pollutants in Norway. — In: F. H. BrÆkke (ed.), Impact of acid precipitation on forest and freshwater ecosystems in Norway: 15–35. SNSF-project FR 6/76, 111 pp.
- Gjessing, E. T., Henriksen, A., Johannesen, M. & Wright, R. F., 1976: Effects of acid precipitation on freshwater chemistry. — In: F. H. BrÆkke (ed.), Impact of acid precipitation on forest and freshwater ecosystems in Norway. 64–85. SNSF- project FR 6/76, 111 pp.
- Hansen, K., 1961: Lake types and lake sediments. — Verh. Internat. Verein. Limnol. 14: 285–290.
- Henriksen, A. & Wright, R. F., 1977: Effects of acid precipitation on a small acid lake in southern Norway. — Nordic Hydrology 8: 1–10.
- Hongve, D., 1977: The ionic composition of lakes fed by ground water and precipitation in the Upper Romerike District. — Nordic Hydrology 8: in press.
- Hongve, D. & Skogheim, O. K., in prep.: Potentiometrie titration of sulphate in fresh water.
- Hydrological data — Norden, representative basins, Romerike, Norway, Data 1965–1971, 1973: Norwegian National Commitee for the International Hydrological Decade, Oslo, 77 pp.
- Hydrological data — Romerike, Norway, Data 1972–1974. 1975: Norwegian National Committee for the International Hydrological Decade, Oslo, 50 pp.
- Kjensmo, J., in press: Postglacial sediments in Vilbergtjern, a small meromictic kettle lake. — Pol. Ardi. Hydrobiol.
- Kuznetsov, S. I., s. a.: The microflora of lakes and its geochemical activity. — Austin/ London. 503 pp.
- Schindler, D. W., Newbury, R. W., Beaty, K. G. & Campbell, P., 1976: Natural water and chemical budgets for a small Precambrian lake basin in central Canada. — J. Fish. Res. Board Can. 33: 2526–2543.
- Wright, R. F. & Gjessing, E. T., 1976: Acid precipitation: Changes in the chemical composition of lakes. — Ambio 5: 219–223.