Seabirds recorded in the Fladenground area, northern North sea, in April, May and June 1976
Joiris, C.R. (1983). Seabirds recorded in the Fladenground area, northern North sea, in April, May and June 1976, in: Sündermann, J. et al. (Ed.) North Sea Dynamics. pp. 676-686
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