00780nam2-22002891i-450-99000089745040332120001010000089745FED01000089745(Aleph)000089745FED0100008974520001010d--------km-y0itay50------baitay-------001yyVolume 11971 Literature September 1972CaliforniaE.E.R.C.1972p.199cm 230010000895062001Abstract Journal in Earthquake Engineering01Dinamica SismicaITUNINARICAUNIMARCBK990000897450403321000089745000001IINTCIINTCVolume 1357104UNINAING01