Patton, H. J. (1980). Reference point equalization method for determining the source and path effects of surface waves, J. Geophys. Res., 85, 821-848.
Patton, H. J., and G. Zandt (1991). Seismic moment tensors of western US earthquakes and implications for the tectonic stress field, J. Geophys. Res., 96, 18245-18259.
Romanowicz, B. (1982). Inversion of surface waves, Earthquakes: Observation, Theory and Interpretation, ed. Kanamori and Boschi, North-Holland Publishing Company, 308-318.
Romanowicz, B. (1982). Moment tensor inversion of long-period Rayleigh waves: A new approach, J. Geophys. Res., 87, 5395-5407.
Additional Background Reading
Aki, K. and H. Patton (1978). Determination of seismic moment tensor using surface waves, Tectonophysics, 49, 213-222.
Mendiguren, J. A. (1977). Inversion of surface wave data in source mechanism studies, J. Geophys. Res., 82, 889-894.