00712 a2200217 4500 140544 OSt 20260717111208.0 9789814295512 515.353 B64W Bona, Andrej Wave fronts and rays as characteristics and asymptotics by Andrej Bona and Michael A. Slawinski New Jersey World Scientific 2011 276P. english Physics Differential equations, Hyperbolic; Seismic waves; Seismology--Mathematics; Differential equations; Wave mechanics; Wave-motion, Theory of Slawinski, Michael A. ddc BK 20821 20821 0 0 ddc 0 0 TXB CURAJ CURAJ PHY 2014-03-12 Pranay Books 5545.80 219/25.10.13 0 515.353 B64W 16529 2024-11-21 2020-09-02 BK