An, Jisun, Haewoon Kwak, Oliver Posegga, and Andreas Jungherr. 2019. “Political Discussions in Homogeneous and Cross-Cutting Communication Spaces”. Proceedings of the International AAAI Conference on Web and Social Media 13 (01), 68-79. https://www.aaai.org/ojs/index.php/ICWSM/article/view/3210.