00773nam0 22002411i 450 990003132900403321000313290FED01000313290(Aleph)000313290FED0100031329020000920d--------km-y0itay50------baitaIT<<A >>Model of Competition among Technological Trajectories and paradigmsRiccardo LeonciniQuaderni del Dipartimento di Scienze Economiche, Università degli Studi di Bergamo96.03Leoncini,RiccardoITUNINARICAUNIMARCBK990003132900403321SESModel of Competition among Technological Trajectories and paradigms456838UNINAING01