See for English texts:
Paper for INCEA-conference in Nepal
A summary of the Everstekoog project on the site of the Utrecht University
is available through the site of Sylvia Toet
Paper for EcoEng99 conference: Do Daphnia really eat sewage sludge?
Can Spoonbills play a role in "integral water management" on Texel?
Some questions, answers and practical solutions from the perspective of a Dutch waterboard
Ruud Kampf