?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Dillingham&rft.aufirst=I.&rft.degree=Doctoral&rft.date=August+2013&rft.title=Exploring+the+geographic+uncertainty+associated+with+crowdsourced+crisis+information%3A+a+geovisualisation+approach&rft.inst=City+University+London