%0 Journal Article %T Technology-gaps, innovation-diffusion and transformation: an evolutionary interpretation %A Fagerberg, Jan %A Verspagen, Bart %A , %J Research Policy %V 31 %N 8-9 %P 1291-1304 %@ 0048-7333 %D 2002-12-01 %I Elsevier BV %~ DeepDyve