Pammolli, Fabio and Riccaboni, Massimo Technological Paradigms and the Evolution of Networks: Lessons from the Pharmaceutical Industry. In: Pier Paolo Saviotti (ed.). Applied Evolutionary Economics: New Empirical Methods and Simulation Techniques. Edward Elgar, Cheltenham, UK, pp. 35-49. ISBN 978 1 84064 847 8 (2003)