1. Anderson, W. L. (1979). Computer programs numerical integration of related Hankel transforms of order 0 and 1 by adaptive digital. Geophysics, 44(3), 1285–1305.
2. Bailey, I. W., Ben-Zion, Y., Becker, T. W., & Holschneider, M. (2010). Quantifying focal mechanism heterogeneity for fault zones in central and southern California. Geophysical Journal International, 183(1), 433–450.
3. Bittar, M. S., Chemali, R. E., Pitcher, J. L., Cook, R., & Knutson, C. (2010). Real time proactive optimal well placement using geosignal and deep images. Offshore technology conference.
4. Chew, W. C. (1990). Waves and fields in inhomogeneous media (1st ed., pp. 133–147). New York: Van Nostrand Reinhold Company.
5. Deng, J. L. (1989). Introduction to grey system. Journal of Grey System, 1, 1–24.