3D. D Price. Networks of scientific papers[J]. Science, 1965, 149:510 - 515.
4O Persson. The intellectual base and research fronts of JASIS 1986 - 1990[J] . Journal of the American Society for Information Science, 1994,45:31 - 38.
5C. Chen. CiteSpace II: Detecting and visualizing emerging trends and transient patterns in scientific literature[J] . Journal of the American Society for Information Science and Technology,2005, 57 (3):359- 377.
6C. Chen. Searching for intellectual turning points: Progressive knowledge domain visualization. Proceedings of the National Academy of Sciences of the United States of America (PNAS),2004:5303 -5310.
7T. M. L. Wigley, R. Richels, J. A. Edmonds. Economic and environmental choices in the stabilization of atmospheric CO2 concentrations [ J ]. Nature, 1996 : 379.
8J. J. Dooley. Unintended Consequences: Energy R&D in Deregulated Market[J]. Energy Policy, 1998(6):547 -555.
9A. McDonald, L. Schrattenholzer. Learn ing rates for energy technologies [ J]. Energy Policy, 2001,29 (4) : 255 - 261.
10K. J. Arrow. The economic implications of learning by doing[J]. Review of Economic Studies, 1962,29(6) : 155 - 173.