P. Brusilovsky, H. Hsiao, and M. Yudelson. JCDL '08: Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries, page 337--340. New York, NY, USA, ACM, (2008)
R. Hosseini, I. Hsiao, J. Guerra, and P. Brusilovsky. Artificial Intelligence in Education, volume 9112 of Lecture Notes in Computer Science, Springer International Publishing, (2015)
I. Hsiao, S. Sosnovsky, and P. Brusilovsky. Learning in the Synergy of Multiple Disciplines, Proceedings of the EC-TEL 2009, volume 5794 of Lecture Notes in Computer Science, Berlin/Heidelberg, Springer, (October 2009)
P. Brusilovsky, H. Hsiao, and M. Yudelson. JCDL '08: Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries, page 337--340. New York, NY, USA, ACM, (2008)
A. Ayerbe, and I. Vazquez. Computer Software and Applications Conference, 1998. COMPSAC '98. Proceedings. The Twenty-Second Annual International, (August 1998)
N. Nikolaev, and V. Slavov. Genetic Programming 1998: Proceedings of the Third
Annual Conference, page 260--268. University of Wisconsin, Madison, Wisconsin, USA, Morgan Kaufmann, (22-25 July 1998)