CAMPHUYSEN CJ (1995) Nederlandse Ornithologische Unie: Themadag Seabirds at sea in the North Sea: Kittiwakes Rissa tridactyla in the North Sea: pelagic ecology, fisheries relationships and feeding strategies. LIMOSA 68 (3): 123-123.

Nederlandse Ornithologische Unie: Themadag Seabirds at sea in the North Sea: Kittiwakes Rissa tridactyla in the North Sea: pelagic ecology, fisheries relationships and feeding strategies

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