Cossard, Alessandro, Gianmarco De Francisci Morales, Kyriaki Kalimeri, Yelena Mejova, Daniela Paolotti, and Michele Starnini. “Falling into the Echo Chamber: The Italian Vaccination Debate on Twitter”. Proceedings of the International AAAI Conference on Web and Social Media 14, no. 1 (May 26, 2020): 130-140. Accessed September 20, 2020. https://aaai.org/ojs/index.php/ICWSM/article/view/7285.