?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=J.S.+van+der&rft.aulast=Veen&rft.au=Veen%2C+J.S.+van+der&rft.date=2016&rft.degree=Bachelor&rft.title=Verenigde+sportdisciplines%3F