@misc{Weretelnik_Elżbieta_The_1973,
 author={Weretelnik, Elżbieta},
 volume={29},
 editor={Research Centre for the Protection of Nature of the Polish Academy of Sciences},
 number={1},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1973},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={The flora of the old walls of the town of Lubań Śląski},
 URL={http://rcin.org.pl/Content/84427/PDF/KR038_109028_r1973-t29-no1_ChPO-Weretelnik-41-45.pdf},
 keywords={Sudety},
}