?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Stolker%2C+B.P.R.&rft.aufirst=B.P.R.&rft.aulast=Stolker&rft.title=Servicekosten%3A+uit+de+schaduw+en+in+de+spotlights&rft.degree=Master&rft.date=2009