?url_ver=Z39.88-2004&rft_id=doi%3A10.1029%2F2004JB003323&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ogata%2C+Yosihiko&rft.aulast=Ogata&rft.aufirst=Yosihiko&rft.issue=B8&rft.volume=110&rft.date=6+August+2005&rft.issn=0148-0227&rft.atitle=Synchronous+seismicity+changes+in+and+around+the+northern+Japan+preceding+the+2003+Tokachi-oki+earthquake+ofM8.0&rft.title=Journal+of+Geophysical+Research&rft.genre=article