Grover, T., and G. Mark. “Detecting Potential Warning Behaviors of Ideological Radicalization in an Alt-Right Subreddit”. Proceedings of the International AAAI Conference on Web and Social Media, Vol. 13, no. 01, July 2019, pp. 193-04, https://www.aaai.org/ojs/index.php/ICWSM/article/view/3221.