@misc{_Acta_2007,
 volume={42},
 editor={Museum and Institute of Zoology, Polish Academy of Sciences},
 journal={Acta Ornithologica},
 address={Warsaw},
 howpublished={online},
 year={2007},
 publisher={Museum and Institute of Zoology, Polish Academy of Sciences},
 publisher={Natura Optima Dux Foundation},
 language={eng},
 type={Text},
 title={Acta Ornithologica, vol. 42 (2007)},
 keywords={birds, Poland, ornithology, periodicals},
}