E. Wilde, S. Anand, и P. Zimmermann. Research and Advanced Technology for Digital Libraries, 9th European Conference, ECDL 2005, Vienna, Austria, September 18-23, 2005, Proceedings, том 3652 из Lecture Notes in Computer Science, стр. 479--480. Springer, (2005)
R. Farzan, и P. Brusilovsky. HT '08: Proceedings of the nineteenth ACM conference on Hypertext and hypermedia, стр. 203--212. New York, NY, USA, ACM, (2008)
E. Wilde, S. Anand, и P. Zimmermann. Research and Advanced Technology for Digital Libraries, 9th European Conference, ECDL 2005, Vienna, Austria, September 18-23, 2005, Proceedings, том 3652 из Lecture Notes in Computer Science, стр. 479--480. Springer, (2005)
R. Farzan, и P. Brusilovsky. HT '08: Proceedings of the nineteenth ACM conference on Hypertext and hypermedia, стр. 203--212. New York, NY, USA, ACM, (2008)