01012cam0-22003491i-450-99000387717040332120060321164203.00-87584-863-X000387717FED01000387717(Aleph)000387717FED0100038771720030910d1999----km-y0itay50------baengUSy-------001yyInformation rulesa strategic guide to the network economyCarl Shapiro and Hal R. VarianBostonHarvard business school press1999352 p.24 cmComunicazioneTecnologiaAspetti economici658.403 821Shapiro,Carl89567Varian,Hal R.<1947- >8043ITUNINARICAUNIMARCBK990003877170403321L6.1068155DECTSVI C 106437397FSPBCFSPBCDECTSInformation Rules16271UNINA