C. man Au Yeung, N. Gibbins, and N. Shadbolt. HT '09: Proceedings of the Twentieth ACM Conference on Hypertext and Hypermedia, New York, NY, USA, ACM, (July 2009)
I. Millard, D. Roure, and N. Shadbolt. Proceedings of First International Workshop on Advanced Context Modelling,
Reasoning And Management, page 42-47. Nottingham, UK, (2004)