Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NISHINO Kazunori,Design and Evaluation of Training System for Numerical Calculation Using Questions in SPI2,Proceedings of 15th International Conference on Human-Computer Interaction,,,2013,15,,,https://cir.nii.ac.jp/crid/1010000782156321158,