?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Popma&rft.aufirst=V.D.&rft.au=Popma%2C+V.D.&rft.date=2020&rft.degree=Bachelor&rft.title=Towards+hydrogen+in+mobility+in+the+city+of+Groningen