?url_ver=Z39.88-2004&rft_id=doi%3A10.1111%2Fj.1365-246X.2009.04487.x&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Kagan%2C+Yan+Y.&rft.aulast=Kagan&rft.aufirst=Yan+Y.&rft.issue=3&rft.volume=180&rft.date=15+December+2009&rft.issn=0956-540X&rft.atitle=Statistical+distributions+of+earthquake+numbers%3A+consequence+of+branching+process&rft.title=Geophysical+Journal+International&rft.pages=1313-1328&rft.genre=article