5Beckman C,Haunschild P.Network learning:The effects of partners heterogeneity of experience on corporateacquisitions[J].Administrative Science Quarterly,2002,47(1);92-124.
6Kesidou E,Snijders C.External knowledge and innovation performance in clusters:Empirical evidence from the Uruguay sofeware cluster[J].Industry & Innovation,2012,19(5):437-457.
7Granovetter M S.Economic action and social structure:The problem of embeddedness[J].American Journal of Sociology,1985,91(3):481-510.
8Grabher G,Ibert O.Bad company? The ambiguity of personal knowledge networks[J].Journal of EconomicGeography,2006,6(3):251-271.
9Hendry C,Brown J.Dynamics of clustering and performance in the UK opto-electronics industry[J].Regional Studies,2006,40(7):707-725.
10Bathelt H,Malmberg A,Maskell P.Clusters and knowledge:Local buzz,global pipelines and the process of knowledge creation[J].Progress in Human Geography,2004,28(1):31-56.