00812nam0-22002771i-450-99000089481040332120001010000089481FED01000089481(Aleph)000089481FED0100008948120001010d--------km-y0itay50------baitay-------001yyXV° Regional Seminar on Earthquake Engineering. Ravello, September 18-23,1989RomaEdizionmi Kappa1989p.163ill.cm 23Dinamica SismicaITUNINARICAUNIMARCBK99000089481040332103 D.0,259477IINTCIINTCXV° Regional Seminar on Earthquake Engineering. Ravello, September 18-23,1989357288UNINAING01