共 13 条
- [1] Geography and trade. Krugman P. Cambridge . 1991
- [3] CiteSpace II: Detecting and visualizing emerging trends and transient patterns in scientific literature[J] . ChaomeiChen.  J. Am. Soc. Inf. Sci. . 2006 (3)
- [4] The Competitive Advantage of Nations. Michael E Porter. New York . 1990
- [5] Scientography: Mapping the tracks of science. Garfield E. Current Contents: Social&Behavioural Sciences . 1994
- [7] The centrality of pivotal points in the evolution of scientific networks. Chen C. Proceedings of the10th international conference on Intelligent user interfaces . 2005
- [8] Deconstructing clusters: chaotic concept or policy panacea?. R. Martin,P. Sunley. Journal of Econometrics . 2003
- [9] Principles of Economics. Marshall A. London Journal . 1920