@misc{_Acta_2004,
 volume={39},
 number={2},
 editor={Museum and Institute of Zoology, Polish Academy of Sciences},
 copyright={Rights Reserved - Free Access},
 address={Warsaw},
 journal={Acta Ornithologica},
 howpublished={online},
 year={2004},
 publisher={Museum and Institute of Zoology, Polish Academy of Sciences},
 language={eng},
 language={pol},
 language={rus},
 type={Text},
 title={Acta Ornithologica, t. 39, no. 2 (2004)},
 keywords={Poland, birds, periodicals, ornithology},
}