1. Generation and propagation of G waves from the Niigata earthquake of June 16, 1964. Part 2. Estimation of earthquake moment, released energy, and stress–strain drop from the G wave spectrum;Aki;Bull. Earthq. Res. Inst. Tokyo Univ.,1966
2. Determination of seismic moment tensor using surface waves;Aki;Tectonophys.,1978
3. Seismic Waves and Sources;Ben-Menahem,1981
4. Bormann, P., 2011. Earthquake magnitude. In: Harsh Gupta (Ed.), Encyclopedia of Solid Earth Geophysics, Springer, pp. 207–218. doi: 10.1007 Earthquake magnitude /978-90-481-8702-7.
5. Bormann, P., Baumbach, M., Bock, G., Grosser, H., Choy, G.L., Boatwright, J., 2002. Seismic sources and source parameters. In: Bormann, P. (Ed.), IASPEI New Manual of Seismological Observatory Practice, vol. 1, Chapter 3, pp. 1–94. GeoForschungsZentrum Potsdam (second edition of this article is now available at: http://nmsop.gfz-potsdam.de, http://dx.doi.org/10.2312/GFZ.NMSOP-2).