B. Wielinga, Th, J. Wielemaker, und J. Sandberg. K-CAP '01: Proceedings of the 1st international conference on Knowledge capture, Seite 194--201. New York, NY, USA, ACM Press, (2001)
C. man Au Yeung, N. Gibbins, und N. Shadbolt. HT '09: Proceedings of the Twentieth ACM Conference on Hypertext and Hypermedia, New York, NY, USA, ACM, (Juli 2009)