@misc{_Acta_1996,
 volume={31},
 editor={International Ornithological Congress (21 ; 1994 ; Wiedeń)},
 editor={Caccamise, Donald F. Red.},
 number={1},
 copyright={Rights Reserved - Free Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1996},
 publisher={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 language={eng},
 language={pol},
 type={Text},
 title={Acta Ornithologica ; vol. 31, no. 1 - Spis treści},
 URL={http://rcin.org.pl/Content/42927/PDF/WA058_32163_P257-T31_Acta-Ornith-Nr-1-sp.pdf},
 keywords={Poland, birds, periodicals, ornithology},
}