?url_ver=Z39.88-2004&rft_id=doi%3A10.1186%2FBF03352963&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Yabe%2C+Yasuo&rft.aulast=Yabe&rft.aufirst=Yasuo&rft.issue=10&rft.volume=61&rft.date=November+2009&rft.issn=1343-8832&rft.atitle=Observation+of+numerous+aftershocks+of+an+M+w+1.9+earthquake+with+an+AE+network+installed+in+a+deep+gold+mine+in+South+Africa&rft.title=Earth%2C+Planets+and+Space&rft.pages=e49-e52&rft.genre=article