@misc{Piękoś-Mirkowa_Halina_Threat_1990,
 author={Piękoś-Mirkowa, Halina},
 volume={Nr 33A},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Studia Naturae},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 year={1990},
 publisher={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 language={pol},
 title={Threat of rare mountain plant species and their conservation},
 type={Text},
 URL={http://rcin.org.pl/Content/148564/PDF/KR038_159461_r1990-t33A_SN-Piekos-7-15.pdf},
}