?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Krenz%2C+Kimon&rft.aufirst=Kimon&rft.aulast=Krenz&rft.degree=Doctoral&rft.date=28+July+2018&rft.inst=UCL+(University+College+London)&rft.tpages=378&rft.title=Network+Centralities+in+Polycentric+Urban+Regions%3A+Methods+for+the+Measurement+of+Spatial+Metrics