@misc{_Acta_1993,
 volume={28},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 number={1},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1993},
 publisher={Muzeum i Instytut Zoologii PAN},
 language={eng},
 language={pol},
 language={rus},
 type={Text},
 title={Acta Ornithologica ; vol. 28, no 1 - Spis treści},
 URL={http://rcin.org.pl/miiz/Content/42431/PDF/WA058_59689_P257-T28_Acta-Ornith-Nr-1-sp.pdf},
 keywords={Poland, birds, periodicals, ornithology},
}