?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=J.&rft.au=Cregan%2C+J.&rft.aulast=Cregan&rft.degree=Masters&rft.inst=UCL+(University+College+London)&rft.tpages=105&rft.title=On+authenticity+in+Heidegger%E2%80%99s+Being+and+Time&rft.date=28+January+2011