Q. He, B. Chen, J. Pei, B. Qiu, P. Mitra, and L. Giles. Proceedings of the 18th ACM conference on Information and knowledge management, page 957--966. New York, NY, USA, ACM, (2009)
Q. He, B. Chen, J. Pei, B. Qiu, P. Mitra, and L. Giles. Proceedings of the 18th ACM conference on Information and knowledge management, page 957--966. New York, NY, USA, ACM, (2009)