1. Beresnev I Gaul W Vigil R D (2011) Direct pore-level observation of perme
2. ability increase in two-phase flow by shaking. Geophys Res Lett 38:L20302.
3. doi:10.1029/2011GL048840
4. Biot M A (1962) Mechanics of deformation and acoustic propagation in porous
5. media.J Appl Phys 33:1482-98.