Tygel, M. Transient waves in layered media / M. Tygel and P. Hubral. - Amsterdam : Elsevier, 1987. - xii, 329 p. : ill. - Methods in geochemistry and geophysics ; 26 . ISBN: 0444428089 (U.S.) : fl 150.00 (est.) LCCN: 91035148 Subjects--Topical Terms: Wave-motion, Theory of.Acoustic surface waves.Wave equation--Numerical solutions.Green's functions.