K.Ramya, S. Rajakumari, и D. Nalini. International Journal on Recent and Innovation Trends in Computing and Communication, 3 (3):
1338--1343(марта 2015)
V. Lavrenko, J. Allan, E. DeGuzman, D. LaFlamme, V. Pollard, и S. Thomas. Proceedings of the second international conference on Human Language Technology Research, стр. 115--121. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2002)
M. Montagnuolo, M. Ferri, и A. Messina. HT '09: Proceedings of the Twentieth ACM Conference on Hypertext and Hypermedia, New York, NY, USA, ACM, (июля 2009)