2DE STEFANO D, FUCCELLA V, VITALE M P, et al. The use of different data sources in the analysis of co-authorship networks and scientific performance[ J]. Social Networks, 2013, http ://dxdoiorg/10. 1016/j. socnet. 2013.04. 004.
3LEMARCHAND G A. The long -term dynamics of co-authorship scientific networks: Iberoamerican countries (1973 -2010 ) [ J ]. Research Poli- cy, 2012, 41(2): 291 -305.
4MEHRI A, DAROONEH A H, SHARIATI A. The complex networks approach for authorship attribution of books [ J ]. Physica A: Statistical Me- chanics and its Applications, 2012, 391 (7) : 2429 - 2437.
5ABBASI A, ALTMANN J, HOSSAIN L. Identifying the effects of co-anthorship networks on the performance of scholars : A correlation and regres- sion analysis of performance measures and social network analysis measures [ J ]. Journal of Informetrics, 2011,5 (4) : 594 -607.
6Jones B F,Wuchty S,Uzzi B. Multi-universityresearch teams: Shifting impact, geography andstratification in science[J]. Science, 2008,322(21):1259-1262.
7Newman M E J. The structure of scientific collaborationnetworks[J]. PNAS, 2001,98(2) : 404-409.
8Grossman J W. The Evolution of the mathematicalresearch collaboration graph[J]. Congressus Numerantium,2002,158: 202-212.
9Barabasi A L, Jeong H,Neda I,et al. Evolution ofthe social network of scientific collaborations [J].Physica A; Statistical Mechanics and itsApplications, 2002 , 311(3-4) : 590-614.
10Tomassini M,Luthi L. Empirical analysis of theevolution of a scientific collaboration network [J].Physica A: Statistical Mechanics and its Applications,2007, 385(2): 750-764.
