1Brenner & Greif. The dependence of innovativeness on the local firm population: an empirical study of German [R]. Patents Economics & Evolution, Max Planck Institute, 2003. 被引量:1
2Renkow M, Hallstrom D, & Karanja D. Rural Infrastructure, Transactions Costs and Market Participation in Kenya [J]. Journal of Development Economics,2004,73(2). 被引量:1
3Sultan F, Urban G.L, Shankar V. & Bart I. Determinants and Consequences of Trust in e-Business[J]. Working paper, Sloan school of Management,MIT, Cambridge,MA,2002. 被引量:1