N. Le, S. Strickroth, S. Gross, and N. Pinkwart. Advanced Computational Methods for Knowledge Engineering, page 267--279. Heidelberg, Springer International Publishing, (2013)
S. Dang, M. Yudelson, and K. Koedinger. Proceedings of the Fourth (2017) ACM Conference on Learning @ Scale, page 51--59. New York, NY, USA, ACM, (2017)
S. Gross, B. Mokbel, B. Hammer, and N. Pinkwart. volume 8474 of Lecture Notes in Computer Science, page 340--347. Springer International Publishing, (2014)
W. Jin, A. Corbett, W. Lloyd, L. Baumstark, and C. Rolka. Intelligent Tutoring Systems, volume 8474 of Lecture Notes in Computer Science, Springer International Publishing, (2014)
S. Risco, and J. Reye. Proceedings of the 2009 conference on Artificial Intelligence in Education: Building Learning Systems that Care: From Knowledge Representation to Affective Modelling, page 541--548. Amsterdam, The Netherlands, The Netherlands, IOS Press, (2009)
S. Ritter, P. Brusilovsky, and O. Medvedeva. 4th International Conference on Intelligent Tutoring Systems, ITS' 98, page 554--563. San Antonio, Texas, USA, Springer Berlin Heidelberg, (August 1998)