@misc{Mehlum_Fridtjof_Sea_1980, author={Mehlum, Fridtjof}, 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={PaƄstwowe Wydawnictwo Naukowe}, language={eng}, language={pol}, language={rus}, type={Text}, title={Sea birds and the Bravo blow-out at Ekofisk, North Sea}, keywords={sea birds, North Sea, congresses, Norway, ecological disaster, density, birds, Aves}, }