@misc{_Acta_1997, volume={32}, number={2}, editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii}, address={Warszawa}, journal={Acta Ornithologica}, howpublished={online}, year={1997}, publisher={Muzeum i Instytut Zoologii PAN}, language={pol}, language={eng}, language={rus}, title={Acta Ornithologica, vol. 32 no 2 (1997)}, type={Text}, keywords={ornithology, birds, Poland, periodicals}, }