@ARTICLE{Ilnicki_P._Principles_2010, author={Ilnicki, P. and Górecki, K. and Grzybowski, M. and Krzemińska, A. and Lewandowski, P. and Sojka, M.}, number={No 14}, journal={Journal of Water and Land Development}, howpublished={online}, year={2010}, publisher={Polish Academy of Sciences; Institute of Technology and Life Sciences - National Research Institute}, title={Principles of hydromorphological surveys of Polish rivers}, URL={http://www.czasopisma.pan.pl/Content/89891/mainfile.pdf}, }