References for the Elastic Waves, Time Explicit Interface
1.
J.S. Hesthaven and T. Warburton,
Nodal Discontinuous Galerkin Methods: Algorithms, Analysis, and Applications
, Springer, 2008.
2.
M. Schoenberg, “Elastic wave behavior across linear slip interfaces,”
J. Acoust. Soc. Am.
, vol. 65, issue 5, 1980.