SKOV H & DURINCK J (1995) Dutch Ornithological Union Themeday Seabirds at sea in the North Sea:Seabird concentrations in the shallow parts of the Baltic Sea. LIMOSA 68 (3): 125-126.

Dutch Ornithological Union Themeday Seabirds at sea in the North Sea:Seabird concentrations in the shallow parts of the Baltic Sea

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