?url_ver=Z39.88-2004&rft_id=doi%3A10.1785%2F0119990086&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Main%2C+Ian&rft.aulast=Main&rft.aufirst=Ian&rft.issue=1&rft.volume=90&rft.date=February+2000&rft.issn=0037-1106&rft.atitle=Apparent+Breaks+in+Scaling+in+the+Earthquake+Cumulative+Frequency-Magnitude+Distribution%3A+Fact+or+Artifact%3F&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.pages=86-97&rft.genre=article