?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Gerbrandy%2C+Jelle&rft.aufirst=Jelle&rft.aulast=Gerbrandy&rft.date=2010&rft.title=Demografische+krimp+in+Noord-Frysl%C3%A2n&rft.degree=Master