Geodesic
On the attenuation of slow interference wave in a cracked layer
Zapiski Nauchnykh Seminarov POMI, Mathematical problems in the theory of wave propagation. Part 27, Tome 250 (1998), pp. 153-160

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An attenuation of interference slow wave propagating in a cracked fluid-filled layer sandwiched between two elastic half-spaces is evaluated. It is proposed, that the attenuation is induced by the fluid unelasticity. It is shown, that wave attenuation can be very small, if the layer thickness is more less then the wavelength. It explains of the possibility of slow wave observation in the real field seismic experiments. 
@article{ZNSL_1998_250_a10,
     author = {P. V. Krauklis and L. A. Krauklis},
     title = {On the attenuation of slow interference wave in a cracked layer},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {153--160},
     publisher = {mathdoc},
     volume = {250},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1998_250_a10/}
}
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P. V. Krauklis; L. A. Krauklis. On the attenuation of slow interference wave in a cracked layer. Zapiski Nauchnykh Seminarov POMI, Mathematical problems in the theory of wave propagation. Part 27, Tome 250 (1998), pp. 153-160. http://geodesic.mathdoc.fr/item/ZNSL_1998_250_a10/