Alfifi, M., P. Kaghazgaran, J. Caverlee, and F. Morstatter. “A Large-Scale Study of ISIS Social Media Strategy: Community Size, Collective Influence, and Behavioral Impact”. Proceedings of the International AAAI Conference on Web and Social Media, Vol. 13, no. 01, July 2019, pp. 58-67, https://www.aaai.org/ojs/index.php/ICWSM/article/view/3209.