8PELLENBARG P, L J G VAN WISSEN,J VAN DIJK. Firm migration[J]. Industrial Location Economics, 2002, 110-148.
9ZENG PENG, YU BO. Simulation on effect pathway of re-gional technological strategy upon the regional technologi- cal progress[J]. International Journal of Advancements in Computing Technology,2012(16) ~9-17.