1. Barsdate, R. J., T. Fenchel & R. T. Prentki, 1974. Phosphorus cycle of model ecosystems: Significance for decomposer food chains and effect of bacterial grazers. Oikos 25: 239?251.
2. Borsheim, K. Y., G. Bratbak & M. Heldal, 1990. Enumeration and biomass estimation of planktonic bacteria and viruses by transmission electron microscopy. Appl. envir. Microbiol. 56: 352?356.
3. Bostr�m, B., M. Jannson & C. Forsberg, 1982. Phosphorus release from lake sediments. Arch. Hydrobiol. Beih. Ergebn. Limnol. 18: 5?59.
4. Bostr�m, B., I. Ahlgen & R. Bell, 1985. Internal nutrient loading in a eutrophic lake reflected in seasonal variations of some sediment parameters. Verh. int. Ver. Limnol. 22: 3335?3339.
5. Bostr�m, B., 1985. The role of Microcystis colonies, its mucilage and associated bacteria, for nutrient fluxes from sediments to lake water. ? A working hypothesis. In: M. Enell, W. Graneli & L.-A. Hansson (eds), Proc. 13th. Nordic Sump. on Sediments, Anneboda, Sweden: 6?8.