P. Mulholland, T. Collins, и Z. Zdrahal. HYPERTEXT '05: Proceedings of the sixteenth ACM conference on Hypertext and hypermedia, стр. 23--31. New York, NY, USA, ACM Press, (2005)
S. Braun, A. Schmidt, A. Walter, G. Nagypal, и V. Zacharias. Proceedings of the Workshop on Social and Collaborative Construction of Structured Knowledge at the 16th International World Wide Web Conference (WWW 07), Banff, Canada, (2007)