Bos, A., G. Nolet, A.M. Rubin, H. Houston, and J. Vidale. 1998. “Duration of Deep Earthquakes Determined by Stacking of Global Seismograph Network Seismograms”. J. Geophys. Res. 103 (B9). John Wiley & Sons, Ltd: 21,059 -21. doi:10.1029/98JB01352.