00825nam0-22002891i-450-99000111977040332120040712162113.0000111977FED01000111977(Aleph)000111977FED0100011197720020001d--------km-y0itay50------baengWave Propagation and Group VelocityLéon BrillouinNew York [etc.]Academic Press1960Pure and applied physics15Fisica matematicaFisica teorica530Brillouin,Léon<1889-1969>340638ITUNINARICAUNIMARCBK99000111977040332120-027.001F19767FI1FI1Wave Propagation and Group Velocity336839UNINA