O. Arazy, and O. Nov. CSCW '10: Proceedings of the 2010 ACM conference on Computer supported cooperative work, page 233--236. New York, NY, USA, ACM, (2010)
B. Suh, G. Convertino, E. Chi, and P. Pirolli. WikiSym '09: Proceedings of the 5th International Symposium on Wikis and Open Collaboration, page 1--10. New York, NY, USA, ACM, (2009)