@misc{Winiecki_Aleksander_Some_1977,
 author={Winiecki, Aleksander},
 volume={33},
 editor={Research Centre for the Protection of Nature of the Polish Academy of Sciences},
 number={2},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 year={1977},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Some rarities in the world of birds of the Kramskie Swamps near Konin},
 type={Text},
 URL={http://www.rcin.org.pl/Content/80869/PDF/KR038_99400_r1977-t33-no2_ChPO-Winiecki-58-61.pdf},
 keywords={Bagna Kramskie},
}