M. Cerulli, A. Chioccariello, and E. Lemut. 5th CERME conference - congress of European Society for Research in Mathematics Education, Larnaca, Cyprus, (2007)
Y. Kali, and M. Ronen. Computer support for collaborative learning: The Next 10 Years! Proceedings of CSCL 2005 (Taipei, Taiwan), Mahwah, NJ, Lawrence Erlbaum Associates, (2005)
V. Barre, C. Chaquet, and H. El-Kechaï. Proceedings of Artificial Intelligence in Education: Workshop on Usage Analysis in Learning Systems, Amsterdam, (2005)
G. Wilson, and M. Heywood. IEEE CCECE 2002: IEEE Canadian Conference on
Electrical and Computer Engineering, 2, page 809--814. IEEE Press, (12-15 May 2002)
L. Shafti, and E. P&\#233;rez. GECCO 2005: Proceedings of the 2005 conference on
Genetic and evolutionary computation, 2, page 1811--1818. Washington DC, USA, ACM Press, (25-29 June 2005)
E. Riloff, and J. Wiebe. Proceedings of the 2003 conference on Empirical methods in natural language processing, page 105--112. Morristown, NJ, USA, Association for Computational Linguistics, (2003)
K. Schoefegger, P. Seitlinger, and T. Ley. Proceedings of the 1st Workshop on Recommender Systems for Technology Enhanced Learning (RecSysTEL 2010), 1, page 2829 - 2838. (Sep 7, 2010)