C. Veres. Natural Language Processing and Information Systems, volume 3999/2006 of Lecture Notes in Computer Science, page 58-69. Berlin / Heidelberg, Springer, (July 2006)
M. Bruckschen, R. Vieira, and S. Rigo. HT '09: Proceedings of the Twentieth ACM Conference on Hypertext and Hypermedia, New York, NY, USA, ACM, (July 2009)
C. Veres. Natural Language Processing and Information Systems, volume 3999 of Lecture Notes in Computer Science, page 58--69. Berlin/Heidelberg, Springer, (2006)