?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Jiazhen&rft.aufirst=Lu&rft.au=Jiazhen%2C+Lu&rft.degree=Doctoral&rft.tpages=248&rft.inst=UCL+(University+College+London)&rft.title=Performance+evaluation+of+concurrency+control+and+locking+in+distributed+database+systems&rft.date=1990