@techreport{eprints2244,
           title = {Competencies, technological change and network dynamics. The case of the bio-pharmaceutical industry},
            year = {1999},
     institution = {IMT Institute for Advanced Studies Lucca},
            type = {Working Paper},
       publisher = {LEM Working Paper Series},
          author = {Luigi Orsenigo and Fabio Pammolli and Massimo Riccaboni},
             url = {http://eprints.imtlucca.it/2244/},
        keywords = {-}
}