3De Solla Price D J, Beaver D. Collaboration in an in- visible college[J]. American Psychologist, 1966,21(11): 1011-1018.
4Subramanyam K. Bibliometric studies of research collabo- ration: A review[J]. Journal of Information Science, 1983,6(1):33-38.
5Braun T, G6mez I, M6ndez A, et al. International co-authorship patterns in physics and its subfields, 1981-1985[J]. Scientometrics, 1992,24(2):181-200.
6Bruno B. Economics of co-authorship[J]. Economic Analysis and Policy, 2014,44(2):212-220.
7Newman M E J. The structure of scientific collabora- tion networks[J]. Proceedings of the National Academy of Sciences, 2001,98(2):404-409.
8Barabgtsi A L, Jeong H, N6da the social network of scientific ca A: Statistical Mechanics and 311(3):590-614 Z, et al. Evolution of collaborations[J]. Physi- Its Applications, 2002,.
9Barabasi A L, Albert R. Emergence of scaling in ran- dom networks[J]. Science, 1999,286(5439):509-512.
10Pluchino A, Boccaletti S, Latora V, et al. Opinion dy- namics and synchronization in a network of scientific collaborations[J]. Physica A: Statistical Mechanics and Its Applications, 2006,372(2):316-325.