?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Laar&rft.aufirst=T.+van+de&rft.au=Laar%2C+T.+van+de&rft.title=The+ideal+of+mixed+neighbourhoods&rft.date=2007&rft.degree=Master