. G. Berryman, ``Long-wavelength propagation in composite elastic media II. Ellipsoidal inclusions,'' J. Acoust. Soc. Am. 68, 1820-1831 (1980). --- Reprinted in: Seismic and Acoustic Velocities in Reservoir Rocks, Vol. 2, Theoretical and Model Studies, edited by Z. Wang and A. Nur (Society of Exploration Geophysicists, Tulsa, Oklahoma, 1992), pp. 285-296
本人求助一文章，不胜感谢。需要多少果果都行
