References
- Holopainen, J. & Jónasson, P. M., 1983: Long-term population dynamics and production of Pisidium (Bivalvia, Sphaeriidae) in the profondal of Lake Esrom. — Oikos 41: 99–117.
- Jónasson, P. M., 1983: The ecosystem of eutrophic Lake Esrom. — In: D. W. Goodall, Ecosystems of the world 23: 177–204 Elsevier. Amsterdam. (This paper contains an almost complete list of references corresponding to the present article.)
- Jónasson, P. M. 1984: Oxygen demand and long term changes of profundal zoobenthos. — Ms., Junk, Haag.