7Schaff, D. P. and Richards, P. G., 2004, Repeating seismic events in China, Science,303,1176 - 1178.
8Schaff, D. P., Beroza, G. C. and Shaw, B. E., 1998, Postseismic response of repeating aftershocks, Geophys. Res. Lett. ,25,4549- 4552.
9Vidale, J. E., Ellsworth, W. L., Cole, A., et. al., 1994, Variations in rupture process with recurrence interval in a repeated smallearthquake, Nature,368,624 ~ 626.
10Wiens, D. A. and Snider, N. O., 2001, Repeating deep earthquakes: evidence for fault reactivation at great depth, Science, 293,1463 ~ 1466.