Jun Rekimoto Hideki Koike Kentaro Fukuchi Yoshifumi Kitamura Daniel Wigdor ACM International Conference on Interactive Tabletops and Surfaces, ITS 2011, Kobe, Japan, November 13-16, 2011 ITS ACM 2011 978-1-4503-0871-7 db/conf/tabletop/its2011.html