Solomon, Jacob, and Rick Wash. “Critical Mass of What? Exploring Community Growth in WikiProjects”. Proceedings of the International AAAI Conference on Web and Social Media 8, no. 1 (May 16, 2014): 476–484. Accessed May 9, 2026. https://ojs.aaai.org/index.php/ICWSM/article/view/14546.