?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Cremonese%2C+L&rft.aulast=Cremonese&rft.aufirst=L&rft.title=A+nitrogen+and+organic+carbon+isotope+study+of+Ediacaran-Cambrian+sedimentary+rocks+of+South+China+(Yangtze+Platform)%3A+palaeoenvironmental+implications&rft.tpages=251&rft.date=28+August+2012&rft.inst=UCL+(University+College+London)&rft.degree=Doctoral