@misc{_Acta_1985, editor={Polska Akademia Nauk. Instytut Zoologii}, copyright={Public Domain}, address={Warszawa}, journal={Acta Ornithologica}, howpublished={online}, year={1985}, publisher={Państwowe Wydawnictwo Naukowe}, language={eng}, language={pol}, language={rus}, title={Acta Ornithologica ; vol 21, no 2 - Spis treści}, type={Text}, URL={http://rcin.org.pl/miiz/Content/38345/PDF/WA058_41070_P257-T21_Acta-Ornith-Nr-2-sp.pdf}, keywords={Poland, birds, periodicals, ornithology}, }