@misc{Endler_Zbigniew_The_2002, author={Endler, Zbigniew and Grzybowski, Mirosław}, volume={58}, number={5}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Kraków}, journal={Let's protect Our Indigenous Nature}, howpublished={online}, year={2002}, publisher={Institute of Nature Conservation of the Polish Academy of Sciences}, language={pol}, type={Text}, title={The new station of Wolffia arrhiza in the area of Olsztyn}, URL={http://rcin.org.pl/iop/Content/107475/PDF/KR038_110739_r2002-t58-no5_ChPO-Endler-101-105.pdf}, keywords={Wolffia arrhiza}, }