Wu, S., C. Tan, J. Kleinberg, and M. Macy. “Does Bad News Go Away Faster?”. Proceedings of the International AAAI Conference on Web and Social Media, vol. 5, no. 1, Aug. 2021, pp. 646-9, https://ojs.aaai.org/index.php/ICWSM/article/view/14196.