Upscaling



Backus Upscaling - Wikipedia

Backus, G.E., 1962, Long-Wave Elastic Anisotropy Produced by Horizontal Layering, Journal of Geophysical Research, 67, 4427-4440.

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