?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Stefan&rft.aulast=Buhrmann&rft.au=Buhrmann%2C+Stefan&rft.degree=Bachelor&rft.title=CU2030%3A+Gedragen+of+verdragen%3F&rft.date=2014