@misc{Schmidt_Günter_(zoologia_;_1928-_)_Some_1980,
 author={Schmidt, Günter (zoologia ; 1928- )},
 editor={Polska Akademia Nauk. Instytut Zoologii},
 editor={International Conference on the Study and Conservation of the Migratory Birds of the Baltic Basin (2 ; 1977 ; Sopot)},
 copyright={Rights Reserved - Restricted Access},
 address={Warszawa},
 journal={Acta Ornithologica},
 howpublished={online},
 year={1980},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 language={pol},
 language={rus},
 type={Text},
 title={Some notes on the ecological status of the shelduck Tadorna tadorna in the Baltic region. A field work programme},
 keywords={Shelduck, ecology, Baltic Sea, congresses, field works, programme, birds, Tadorna tadorna, Anatidae, Aves},
}