Aerial Surveys of Harbour Seals in the Wadden Sea in 2008 Back to Pre-epizootic Level, and Still Growing von Brasseur, Sophie M.J.M., Peter J.H., Reijnders, Borchardt, Thomas, Siebert, Ursula, Stede, Michael, Ramdohr, Sven, Jensen, Lasse Fast, Teilman, Jonas, Tougaard, Jacob

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