S. Wang, J. Tang, C. Aggarwal, и H. Liu. Proceedings of the 25th ACM International on Conference on Information and Knowledge Management, ACM, (октября 2016)
D. Tang, F. Wei, N. Yang, M. Zhou, T. Liu, и B. Qin. Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), стр. 1555--1565. Baltimore, Maryland, Association for Computational Linguistics, (июня 2014)