1. Backus, G., 1962, Long-wave elastic anisotropy produced by horizontal layering: Journal of Geophysical Research, 67, 4427–4440.
2. Ba, J., Xu, W., Fu, L. Y., et al., 2017, Rock anelasticity due to patchy saturation and fabric heterogeneity: A double double-porosity model of wave propagation: Journal of Geophysical Research: Solid Earth, 122(3), 1949–1976.
3. Deng, J. X., Shi, L., Liu, R. X., and Yu, J., 2004, Analysis of sound velocity anisotropy of mudstone and shale and its influencing factors: Acta Geophysics, 47(05), 862–868.
4. Deng, J., Wang, S., and Han, D. H., 2009, The velocity and attenuation anisotropy of shale at ultrasonic frequency: Journal of Geophysics and Engineering, 6(3), 269–278.
5. Gui, J. C., Ma, T. S., and Chen, P., 2004, Establishment of a petrophysical model for transversely isotropic shale-taking the shale of the Longmaxi Formation as an example: Chinese J. Geophys., 63(11), 4188–4204.