@misc{Michalik_Stefan_The_1989, author={Michalik, Stefan}, volume={45}, number={1}, editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Warszawa}, address={Kraków}, journal={Let's protect Our Indigenous Nature}, howpublished={online}, year={1989}, publisher={Państwowe Wydawnictwo Naukowe}, language={pol}, type={Text}, title={The endangered and the threatened species of the Polish flora: the problems of their protection}, URL={http://rcin.org.pl./Content/84496/PDF/KR038_107296_r1989-t45-no1_ChPO-Michalik-5-20.pdf}, }