Creating Multi-Level Reflective Reasoning Models Based on Observation of Social Problem-Solving in Infants. - Heikki Ruuska; Naofumi Otani; Shinya Kiriyama; Yoichi Takebayashi (EJC, 2007)

Child selection of learning methods: a corpus based on real-world data. - Heikki Ruuska; Shinya Kiriyama; Yoichi Takebayashi (WOCCI, 2009)