00821nam0-22003011i-450-99000088928040332120001010000088928FED01000088928(Aleph)000088928FED0100008892820001010d--------km-y0itay50------baitay-------001yySpectres de Vibration et Symetric DescristauxParisGordon Breach1970.p. 438ill.cm 23Dinamica , SismicaPoulet,Henri43479Mathiew,J. PaulITUNINARICAUNIMARCBK99000088928040332103 D.0,522528IINTCIINTCSpectres de Vibration et Symetric Descristaux356837UNINAING01