References

• Schoenberg, M., and Muir, F., 1989, A calculus for finely layered anisotropic media: Geophysics 54, 581-589.

• Auld, B. A., 1973, Acoustic Fields and Waves in Solids I: John Wiley & Sons.

• Nichols, D., and Karrenbach, M.,1990, What is equivalent in an ``equivalent medium'': SEP-67.