Tangible Collaborative Learning Support System for Spatio-Temporal Contents. - Yuta Maruyama; Keigo Kitahara; Tomoo Inoue; Hiroshi Shigeno; Ken-ichi Okada 002 (ICCE, 2005)

Evaluation of Content Handling Methods for Tabletop Interface. - Ryoko Ishido; Keigo Kitahara; Tomoo Inoue; Ken-ichi Okada 002 (HCI (2), 2007)