Polish Journal of Environmental Studies. Vol. 15, no. 5D Pt. 2, 2006, Wetlands Freshwater Ecosystems - Functioning, Threats and Protection, Poland, Białowieża, 13-15 September, 2006.
- Olsztyn : HARD Publishing Company, 2006.
- 357-747 s. : il. ; 29 cm.
bibliogr.
574.4/.5:556.56:504.4.054:061.3