@inproceedings{HCI-AS-2013-TsumoriN,
	author        = "Shin'ichi Tsumori and Kazunori Nishino",
	booktitle     = "{Proceedings of the 15th International Conference on Human-Computer Interaction. Part II: Applications and Services}",
	doi           = "10.1007/978-3-642-39262-7_58",
	isbn          = "978-3-642-39261-0",
	pages         = "511--520",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Design and Evaluation of Training System for Numerical Calculation Using Questions in SPI2}",
	volume        = 8005,
	year          = 2013,
}