References
- Edmondson, W. T. & Winberg, G. G., 1971: A manual of method for the assessment of secondary productivity in fresh waters. — IBP Handb. 17, Blackwell Scientific Publications, Oxford, 358 pp.
- Biesiadka, E. & Kowalik, W., 1991: Water mites as indicators of trophy and pollution in lakes. — In: Dusbabek, E & Bukva, V. (eds.): Modem Acarology. Prague.
- Radwan, S. (ed.), 1995: Protection of the water ecosystems in Polesie National Park and its protection zone. — AR, TWWP, Lublin, 103 pp. (in Polish).