Authors
Katarzyna Kowalczewska-Madura
Department of Water Protection, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
Ryszard Gołdyn
Department of Water Protection, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
© 2010 Katarzyna Kowalczewska-Madura, Ryszard Gołdyn, published by University of Gdańsk
This work is licensed under the Creative Commons License.