References

• Cole, S., 1989, Scattering analysis of passive seismic data: SEP-61, 115-132.

• Karrenbach, M., and Cole, S., 1989, Beam steering using 3-component data: SEP-61, 243-260.

• Nichols, D., Cole S., and Zhang, L., 1989, An introduction to the SEP passive seismic dataset: SEP-60, 67-76.

• Nikolaev, A.V., and Troitskiy, P.A., 1987, Lithospheric studies based on array analysis of P-coda and microseisms, Tectonophysics, 140, 103-113.

• Kostov, C., 1990, Seismic experiment with a drill-bit source: SEP-63.