Liu, Jiahui, Larry Birnbaum, and Bryan Pardo. “Spectrum: Retrieving Different Points of View from the Blogosphere”. Proceedings of the International AAAI Conference on Web and Social Media 3, no. 1 (March 19, 2009): 114-121. Accessed September 22, 2024. https://ojs.aaai.org/index.php/ICWSM/article/view/13953.