P. Brusilovsky, J. Ahn, T. Dumitriu, und M. Yudelson. Proceedings of the conference on Information Visualization, Seite 142--150. Washington, DC, USA, IEEE Computer Society, (2006)
P. Brusilovsky, J. Ahn, T. Dumitriu, und M. Yudelson. Proceedings of the conference on Information Visualization, Seite 142--150. Washington, DC, USA, IEEE Computer Society, (2006)
P. Brusilovsky, H. Hsiao, und M. Yudelson. JCDL '08: Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries, Seite 337--340. New York, NY, USA, ACM, (2008)
P. Brusilovsky, H. Hsiao, und M. Yudelson. JCDL '08: Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries, Seite 337--340. New York, NY, USA, ACM, (2008)
D. Carraher, und D. Earnest. Proceedings of the 2003 Joint Meeting of PME and PMNA (PME27 and PME-NA25), 2, Seite 173--180. 1776 University Av., Honolulu, HI 96822, International Group for the Psychology of Mathematics Education, College of Education, University of Hawai'i, (Juli 2003)