?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=R.&rft.au=Vroom%2C+R.&rft.aulast=Vroom&rft.title=Rafelrandjes+op+de+rand+van+de+afgrond&rft.degree=Master&rft.date=2015