@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/Content/126910/PDF/KR038_149438_r2014_PCzKR-Piekos-85-86.pdf},
 keywords={red data book, flowering plants, Anthophyta, Salix helvetica},
}