Hemphill, L., and A. M. Schöpke-Gonzalez. “Two Computational Models for Analyzing Political Attention in Social Media”. Proceedings of the International AAAI Conference on Web and Social Media, vol. 14, no. 1, May 2020, pp. 260-71, https://ojs.aaai.org/index.php/ICWSM/article/view/7297.