1.
State of the affairs of risk analysis of the Dutch part of the North Sea
The little auk Alle alle in Belgium = De Kleine Alk in België
2.
Verhouding Zeekoet Uria aalge / Alk Alca torda in Vlaamse kustwateren
Pathological investigations on guillemots (Uria aalge) stranded on the Belgian coast during the winter of 1993-94
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