TY - BOOK AU - Gunther,Paul TI - Huygens' principle and hyperbolic equations SN - 0123073308 U1 - 515.3/53 19 PY - 1988/// CY - Boston PB - Academic Press KW - Wave-motion, Theory of KW - Huygens' principle KW - Differential equations, Hyperbolic N1 - Includes index; Bibliography: p. 833-847 ER -