Y. Chen, H. Dong, и W. Wang. Proceedings of the 2018 International Conference on Data Science and Information Technology, стр. 138--143. New York, NY, USA, ACM, (2018)
Q. He, B. Chen, J. Pei, B. Qiu, P. Mitra, и L. Giles. Proceedings of the 18th ACM conference on Information and knowledge management, стр. 957--966. New York, NY, USA, ACM, (2009)