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• ['Knopoff, L.', 'Kagan, Y. Y.', 'Knopoff, R.']
  b Values for Foreshocks and Aftershocks in Real and Simulated Earthquake Sequences.
  National Science Foundation, Washington, DC., January 1982, 17 p.
  Keywords: Seismic waves; Magnitude; Ground motion; Earthquake engineering; Reprints; Statistical data; Frequency distribution; Shock waves; Earthquakes