?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=El-Sayed%2C+A-M&rft.aulast=El-Sayed&rft.aufirst=A-M&rft.atitle=Identification+of+intrinsic+electron+trapping+sites+in+bulk+amorphous+silica+from+ab+initio+calculations&rft.title=MICROELECTRONIC+ENGINEERING&rft.pages=68+-+71&rft.date=September+2013&rft.volume=109&rft.issn=0167-9317&rft.genre=article