?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Loos&rft.aufirst=H.S.&rft.au=Loos%2C+H.S.&rft.date=2019&rft.title=Gasless+Groningen&rft.degree=Master