@misc{_1980,
 editor={Polska Akademia Nauk. Instytut Zoologii},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1980},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 language={pol},
 language={rus},
 type={Text},
 URL={http://rcin.org.pl/Content/22547/PDF/WA058_42057_P257-T17_Acta-Ornith-Nr-1-15ws.pdf},
 keywords={Poland, birds, periodicals, ornithology},
}