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Harbour Seal Numbers in the Wadden Sea and on Helgoland in 2008
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Trilateral Monitoring and Assessment Programme Handbook as text files
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Trilateral Monitoring and Assessment Programme Handbook as data base
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Wadden Sea Ecosystem 24: Wadden Sea World Heritage Nomination (Dutch-German Wadden Sea)
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Harbour Seal Numbers in the Wadden Sea and on Helgoland in 2007
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Harbour and Grey Seal Numbers in the Wadden Sea and on Helgoland in 2006
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Wadden Sea Ecosystem 23: Seriously Declining Trends in Migratory Waterbirds
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Harbour Seal Numbers in the Wadden Sea and on Helgoland in 2004 and 2005
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Wadden Sea Ecosystem 21: Coastal Protection and Sea Level Rise
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Wadden Sea Ecosystem 18: Contaminants in Bird Eggs in the Wadden Sea
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