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3. The revision of earthquake epicenters, focal depth, and origin-time using a high-speed computer;Bolt;Geophys. J.R. Astron. Soc.,1960
4. Earthquake location for small network using the generalized inverse matrix;Bolt;Bull. Seismol. Soc. Am.,1970
5. The mechanics of locating earthquakes;Buland;Bull. Seismol. Soc. Am.,1976