?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Dijk%2C+M.L.+van&rft.aulast=Dijk&rft.aufirst=M.L.+van&rft.degree=Master&rft.date=2009&rft.title=Water+bron+van+Kansen%3F