9ZHOU Tao, REN Jie. Bipartite network projection and personal recommendation [ J ]. Physical Review E, 2007, 76(4) : 0461151-0461157.
10WANG Bing, TANG Huan-wen, GUO Chong-hui, et al Optimization of network structure to random failures [ J ] Physica A: Statistical Mechanics and its Applications 2006, 368 (2): 607-614.