1. Pulse diffraction by an imperfectly reflecting wedge;Papadopoulos;J. Austral. Mat. Soc.,1961
2. Waves in Multilayered Uniform Isotropic Media;Petrashen',1985
3. Matrix Theory;Gantmakher,1988
4. Three-Dimensional Problems of the Unsteady Motion of a Compressible Fluid.;Sagomonyan,1970