00811nam0-22002891i-450-99000050559040332120080201141105.0000050559FED01000050559(Aleph)000050559FED0100005055920020821d1970----km-y0itay50------baenga-------001yyHyperbolic equations and wavesEdited by M. FroissartBerlin ; HeidelbergSpringer-Verlag1970393 p.ill.25 cmFunzioni esponenziali511.33Froissart,M.27141ITUNINARICAUNIMARCBK99000050559040332110 E III 1006533DINELDINELHyperbolic equations and waves330569UNINA