01023nam0-22002891i-450-990002586700403321000258670FED01000258670(Aleph)000258670FED0100025867020000920d1992----km-y0itay50------baENGOperation 1992. Investigation of requirements and options in the field of advanced communications-technologies in Europeconsolidation of resultsCommission of the European Communities.BruxellesComeu1992.453 p.29 cmIndagini statisticheTecnologia delle comunicazioniEuropa004.6Commissione europea492303ITUNINARICAUNIMARCBK990002586700403321XXX-F-593727MASMASOperation 1992. Investigation of requirements and options in the field of advanced communications-technologies in Europe435017UNINAING01