?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Caracas&rft.aufirst=R&rft.au=Caracas%2C+R&rft.issue=6&rft.issn=0094-8276&rft.date=23+March+2005&rft.title=Geophysical+Research+Letters&rft.volume=32&rft.atitle=CaSiO3+perovskite+at+lower+mantle+pressures&rft.genre=article