Environmental zoning of the Dutch continental shelf based on ecosystem features: Reference document of the North Sea Water System Management Plan 1991-1995 = Milieuzonering van het NCP op basis van ecosysteemkenmerken: Referentie document van het WSP-Noordzee 1991-1995
(1992). Environmental zoning of the Dutch continental shelf based on ecosystem features: Reference document of the North Sea Water System Management Plan 1991-1995 = Milieuzonering van het NCP op basis van ecosysteemkenmerken: Referentie document van het WSP-Noordzee 1991-1995. NZ-N-90.07. Directorate-General for Public Works and Water Management: Den Haag. 36 + app. pp.
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