1. Armstrong, D. E., J. R. Perry & D. Flatness, 1979. Availability of pollutants associated with suspended or settled river sediments which gain access to the Great Lakes. PLUARG Tech. Rep., Int. Joint Commision, Great Lakes Regional Office.
2. Boers, P. C. M., W. Th. Bongers, A. G. Wisselo & Th. E. Cappenberg, 1984. Loosdrecht lakes Restoration Project: Sediment phosphorus distribution and release from the sediments. Verh. int. Ver. Limnol. 22: 842–847.
3. Boström, B., 1984. Potential mobility of phosphorus in different types of lake sediments. Int. Revue. ges. Hydrobiol. 69: 457–474.
4. Boström, B., M. Jansson & C. Forsberg, 1982. Phosphorus release from lake sediments. Arch. Hydrobiol. Beih. Ergebn. Limnol. 18: 5–59.
5. Chang, S. C. & M. L. Jackson, 1957. Fractionation of soil phosphorus. Soil Sci. 84: 133–144.