Atsushi Hiyama Kotaro Hashimoto Tomohiro Tanikawa Michitaka Hirose Study on Public User Interface. 518-525 2007 conf/hci/2007-9 HCI (9) http://dx.doi.org/10.1007/978-3-540-73354-6_57 db/conf/hci/hci2007-9.html#HiyamaHTH07