1. A least-squares method for the Helmholtz equation;Monk;Comput. Methods Appl. Mech. Eng.,1999
2. The Ray and Wave Theory of Lenses;Walther,1995
3. Seismic Waves and Sources;Ben-Menahem,2000
4. Principles of Radar and Sonar Signal Processing;Le Chevalier,2002
5. An Introduction to Boundary Element Methods;Kythe,1995