B. Robinson, R. Power, and M. Cameron. WWW (Companion Volume), page 999-1002. International World Wide Web Conferences Steering Committee / ACM, (2013)
M. Peters, W. Ammar, C. Bhagavatula, and R. Power. Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 1, page 1756--1765. (2017)