1.
Flora en fauna van de Noordzee
2.
The Lippensbroek polder as a case study for the inner dike restoration of ecosystem structures and functions
Diversiteit, densiteit en biomassa van het macrobenthos in de Westerschelde: 1986-1988
Introduction: objectives and outline of the thesis
The demersal fish and macro-invertebrate assemblages of the Westerschelde and Oosterschelde estuaries: overview and final conclusions