WEBB A, STON C & TASKER M (1995) Dutch Ornithological Union Themeday Seabirds at sea in the North Sea: Auk distribution in relation to colony location around Britain and Ireland. LIMOSA 68 (3): 125-125.

Dutch Ornithological Union Themeday Seabirds at sea in the North Sea: Auk distribution in relation to colony location around Britain and Ireland

[free pdf] [dutch summary]