Zhang, Yin, Zhang, Bin, Gao, Kening, Guo, Pengwei and Sun, Daming. "Combining content and relation analysis for recommendation in social tagging systems." Physica A: Statistical Mechanics and its Applications 391 , no. 22 (2012): 5759 - 5768.

Zhang, Yin, Zhang, Bin, Gao, Kening, Guo, Pengwei and Sun, Daming. "Combining content and relation analysis for recommendation in social tagging systems." Physica A: Statistical Mechanics and its Applications 391 , no. 22 (2012): 5759 - 5768.