Q. He, B. Chen, J. Pei, B. Qiu, P. Mitra, und L. Giles. Proceedings of the 18th ACM conference on Information and knowledge management, Seite 957--966. New York, NY, USA, ACM, (2009)
Q. He, D. Kifer, J. Pei, P. Mitra, und C. Giles. Proceedings of the fourth ACM international conference on Web search and data mining, Seite 755--764. New York, NY, USA, ACM, (2011)