?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Wiersma%2C+B.&rft.aufirst=B.&rft.aulast=Wiersma&rft.date=2008&rft.title=Applying+cradle-to-cradle+on+the+regional+scale+%E2%80%93+Spatial+planning+in+the+province+of+Groningen&rft.degree=Master