TY - JOUR AU - Brusoni,S AU - Criscuolo,P AU - Geuna,A EP - 416 PY - 2005/// SN - 1043-8599 SP - 395 TI - The knowledge bases of the world's largest pharmaceutical groups: what do patent citations to non-patent literature reveal? T2 - Economics of Innovation & New Technology VL - 14 ER -