@misc{Witkowski_Zbigniew_On_1983,
 author={Witkowski, Zbigniew},
 volume={39},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 number={5},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 year={1983},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={On the need for the protection of the unstable stages of development of silvan biocoenoses},
 type={Text},
 URL={http://rcin.org.pl/Content/71410/PDF/KR038_91065_r1983-t39-no5_ChPO-Witkowski-11-17.pdf},
 keywords={silvan biocoenoses},
}