?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=T.L.&rft.aulast=Wolf&rft.au=Wolf%2C+T.L.&rft.degree=Master&rft.date=2018&rft.title=Urban+Water+Security+and+Water+Management.+A+Case+of+the+Johannesburg+Metropolitan+Area.