@misc{Olszewski_Tomasz_S._Spergularia_2014,
 author={Olszewski, Tomasz S. and Markowski, Ryszard},
 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={Spergularia media (L.) C. Presl Muchotrzew trwały},
 type={Text},
 URL={http://www.rcin.org.pl/Content/135881/PDF/KR038_166866_r2014_PCzKR-Olszewski-133-135.pdf},
 keywords={red data book, flowering plants, Anthophyta, Spergularia media},
}