@misc{Wasilewski_Aleksander_Certain_1961,
 author={Wasilewski, Aleksander},
 volume={9},
 editor={Polska Akademia Nauk. Komitet Ekologiczny},
 number={7},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 journal={Ekologia Polska. Seria A},
 howpublished={online},
 year={1961},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 type={Text},
 title={Certain aspects of the habitat selection of birds},
 URL={http://www.rcin.org.pl/Content/67951/PDF/WA058_86103_P2840-T9_Eko-Pol-A-Nr-7.pdf},
 keywords={birds, ecology, Poland, Kampinos Forest, Aves},
}