@inproceedings{HV2006,
author = {W. Hämäläinen and  M. Vinni},
title = {Comparison of machine learning methods for intelligent tutoring systems},
booktitle = {Proceedings of the 8th international conference in intelligent tutoring systems({ITS})},
series = {Lecture Notes on Computer Science},
volume = {4053},
publisher = {Springer},
pages = {525--534},
year = {2006}
}