@misc{Mathiasson_Sven_(1930–_)_Sandwich_1980,
 author={Mathiasson, Sven (1930– )},
 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},
 title={Sandwich tern Sterna sandvicensis in a changing bird community and the need for alternative breeding sites},
 type={Text},
 keywords={Sandwich tern, Baltic Sea, congresses, counting, changes, breeding sites, Sweden, south-western, 1911-77, birds, Sterna sandvicensis, Sternidae, Aves},
}