@misc{Piękoś-Mirkowa_Halina_Salix_2014, author={Piękoś-Mirkowa, Halina}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Kraków}, howpublished={online}, year={2014}, publisher={Institute of Nature Conservation of the Polish Academy of Sciences}, language={pol}, title={Salix helvetica Vill. Wierzba szwajcarska}, type={Text}, URL={http://rcin.org.pl/iop/Content/126910/PDF/KR038_149438_r2014_PCzKR-Piekos-85-86.pdf}, keywords={red data book, flowering plants, Anthophyta, Salix helvetica}, }