00599nam0-22002291i-450-990001303220403321000130322FED01000130322(Aleph)000130322FED0100013032220000920d--------km-y0itay50------baengNonlinear wave equationsby STRAUSS W.A.Strauss,Walter A.42684ITUNINARICAUNIMARCBK990001303220403321C0LL-35-(737656MA1MA1Nonlinear wave equations383343UNINAING01