?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Jason+Mark&rft.au=Roberts%2C+Jason+Mark&rft.aulast=Roberts&rft.tpages=199&rft.title=Electronic+properties+of+quantum+wells+for+field+effect+transistor+applications&rft.date=1997&rft.degree=Doctoral&rft.inst=University+College+London+(United+Kingdom)