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The harbour porpoise Phocoena phocoena in the Belgian part of the North Sea: trends in abundance and distribution

Haelters, J., Kerckhof, F., Thierry, J., Degraer, S.
2011

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The impact of the North Sea MARPOL Special Area designation on oil discharges by vessels: an analysis of 20 years data from Belgian aerial surveillance

Lagring, R., Degraer, S., de Montpellier, G., Thierry, J., Van Roy, W., Schallier, R.
2011