References
- Andersen, J. M., 1975: Influence of pH on release of phosphorus from lake sediments. — Arch. Hydrohiol. 76: 411–419.
- Erlandsen, A., GrØTerud, O. & Skogheim, O. K., 1980: Internal phosphorus loading in lakes due to high pH. — Inst. Hydrotek., Nlh-stensiltrykk nr 7 / 1980, 27 pp. (In Norwegian).
- KÄLlqvist, T. & Berge, D., 1990: Biological availability of phosphorus in agricultural runoff compared to other phosphorus sources. — Verh. Internat. Verein. Limnol. 24: 214–217.