Bibliography
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.. [bib1] Semblat, J. F. & Pecker, A. (2009). Waves and Vibrations in Soils: Earthquakes, Traffic, Shocks, Construction works. IUSS Press.

.. [bib2] Christensen, R. M. , Theory of Viscoelasticity: An Introduction, Academic Press Inc, 1971.

.. [bib3] Zienkiewicz, O.C., Bando, K., Bando, K., K., Bettes, K., Bettes, P., P., Emson, C., and Chiam, T. C., "Mapped infinite elements for exterior wave problems," International Journal for Numerical Methods in Engineering," International Journal for Numerical Methods in Engineering, vol. 21, no. 7, pp. 1229-1251, 1985.