@misc{Wesołowski_Tomasz_(1950–_)_Why_1987,
 author={Wesołowski, Tomasz (1950– ) and Tomiałojć, Ludwik (1939– ) and Stawarczyk, Tadeusz (1952– )},
 volume={23},
 editor={Polska Akademia Nauk. Instytut Zoologii},
 number={2},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1987},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 language={rus},
 language={pol},
 type={Text},
 title={Why low numbers of Parus major in Białowieża Forest - removal experiments},
 URL={http://rcin.org.pl/miiz/Content/41736/PDF/WA058_57184_P257-T23_Acta-Ornith-Nr-2-5.pdf},
 keywords={Bogatka -- liczebność -- Polska Białowieska, Puszcza (las). -- -- [KABA], Bogatka -- ekologia -- Polska Białowieska, Puszcza (las). -- -- [KABA], Great Tit, ecology, counting, Poland, Białowieża Forest, birds, Parus major, Paridae, Aves},
}