@misc{_Acta_1998,
 volume={33},
 number={3-4},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1998},
 publisher={Muzeum i Instytut Zoologii PAN},
 language={eng},
 language={pol},
 language={rus},
 title={Acta Ornithologica ; vol. 33, no. 3-4 - Spis treści},
 type={Text},
 URL={http://rcin.org.pl/Content/43651/PDF/WA058_60641_P257-T33_Acta-Ornith-Nr-2-sp.pdf},
 keywords={Poland, birds, periodicals, ornithology},
}