D. Millard, и M. Ross. HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia, стр. 27--30. New York, NY, USA, ACM Press, (2006)
S. Chakrabarti, M. Joshi, и V. Tawde. Proceedings of the 24th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, стр. 208-216. ACM Press, (2001)
A. Chin, и M. Chignell. HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia, стр. 11--22. New York, NY, USA, ACM Press, (2006)