?url_ver=Z39.88-2004&rft_id=doi%3A10.1029%2F2006GL026507&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Naoi%2C+Makoto&rft.aulast=Naoi&rft.aufirst=Makoto&rft.issue=12&rft.volume=33&rft.date=April+2006&rft.issn=0094-8276&rft.atitle=Small+slow-strain+steps+and+their+forerunners+observed+in+gold+mine+in+South+Africa&rft.title=Geophysical+Research+Letters&rft.genre=article