1. Goldin, S.V., Yushin, V.I., Ruzhich, V.V., and Smekalkin, O.P., Slow Motions: Myth or Reality? Physical Basics for Rock Failure Prediction: Proc. IX Int. Workshop, Krasnoyarsk, 2002, Novosibirsk: Geo, 2002, pp. 213–220.
2. Bykov, V.G., Strain Waves in the Earth: Theory, Field Data, and Models, Rus. Geol. Geophys., 2005, vol. 46, no. 11, pp. 1158–1170.
3. Guberman, Sh.A., D Waves and Earthquakes. Theory and Analysis of Seismic Observations, Comput. Seismol., 1980, no. 12, p. 136.
4. Nevsky, M.V., Fews, G.S., and Morozova, L.A., Strain Propagation: Field Data and Models, Physical Basics of Seismic Monitoring (Unconventional Geophysics), Moscow: Nauka, 1991, pp. 39–56.
5. Nevsky, M.V., Artamonov, A.M., and Riznichenko, O.Yu., Strain Waves and Seismic Energy, Dokl. Akad. Nauk SSSR, 1991, vol. 318, no. 2, pp. 316–320.