@misc{Szmeja_Józef_Isoëtes_2014,
 author={Szmeja, Józef},
 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},
 type={Text},
 title={Isoëtes lacustris L. Poryblin jeziorny},
 URL={http://www.rcin.org.pl/Content/126890/PDF/KR038_149368_r2014_PCzKR-Szmeja-38-39.pdf},
 keywords={red data book, pteridophytes, Pteridophyta, Isoëtes lacustris},
}