Authors
Bogna Paczuska
Department of Botany and Ecology, Universityof Technology and Life Sciences in Bydgoszcz, Bydgoszcz, Poland
Ryszard Paczuski
University College of Medical Sciences, Bydgoszcz, Poland
© 2015 Bogna Paczuska, Ryszard Paczuski, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.