00766nam0-22002891i-450-99000057471040332120001010000057471FED01000057471(Aleph)000057471FED0100005747120001010d--------km-y0itay50------baitay-------001yyYIELD-LINE THEORYJOHANSEN K.W.s.l.Cement and concrete association1962Teoria delle StruttureScienza delle CostruzioniCalcolo a RotturaJohansen,Knud WinstrupITUNINARICAUNIMARCBK99000057471040332107 A-1093102DINSCDINSCUNINAING01