Math e-Learning System STACK2.2 and a Prototype of Question Authoring Tool. - Yasuyuki Nakamura; Takahiro Nakahara (ICCE, 2011)

Authoring Quizzes with Interactive Content on the Mathematics e-Learning System STACK. - Yasuyuki Nakamura; Takahiro Nakahara; Masataka Kaneko; Setsuo Takato (ICCSA (4), 2017)

Intelligent Editor for Authoring Educational Materials in Mathematics e-Learning Systems. - Shizuka Shirai; Tetsuo Fukui; Kentaro Yoshitomi; Mitsuru Kawazoe; Takahiro Nakahara; Yasuyuki Nakamura; Katsuya Kato; Tetsuya Taniguchi (ICMS, 2018)

Effective Usage of Various Answer Types of Mathematics e-Learning System. - Yasuyuki Nakamura; Saburo Higuchi; Yuko Ichikawa; Yoshinori Miyazaki; Kentaro Yoshitomi; Takahiro Nakahara (TALE, 2019)

Monitoring the Impact of Teacher's Intervention in Inquiry-Based Mathematics Learning with the use of Dynamic Geometry. - Takeo Noda; Takahiro Nakahara; Masataka Kaneko (CICM Workshops, 2021)

MathTOUCH Editor: Rich-text Editor for Math E-learning Using an Intelligent Math Input Interface. - Shizuka Shirai; Takahiro Nakahara; Tetsuo Fukui (J. Inf. Process., 2023)