00680nam0-22002651i-450-990001286260403321000128626FED01000128626(Aleph)000128626FED0100012862620000920d--------km-y0itay50------baengAsymptotic wave theoryBy Roseau MauriceAmsterdam [etc.]North-HollandNorthRoseau,Maurice11978ITUNINARICAUNIMARCBK99000128626040332126-I-2017507MA1MA1Asymptotic wave theory384688UNINAING01