00964nam0-22003251i-450-99000057611040332120001010000057611FED01000057611(Aleph)000057611FED0100005761120001010d--------km-y0itay50------baitay-------001yyCONCRETE SHELL ROOF CONSTRUCTIONPROCEEDINGS OF THE SECOND SYMPOSIUMOsloTeknisk Ukeblad19581 - 3 July 1957Materiali da CostruzioneCostruzioni di MacchineTeoria e pratica delle Costruzioni civili e industrialiMeccanica RazionaleProceedings Of the Second Symposium492298ITUNINARICAUNIMARCBK99000057611040332107 B-39DINSCDINSCCONCRETE SHELL ROOF CONSTRUCTION319242UNINAING01