A Walk-Rally Support System Using Two-Dimensional Codes and Mobilephones. - Tetsuya Miyagawa; Yoshio Yamagishi; Shun Mizuno (Edutainment, 2011)

Walk-rally support system using two-dimensional codes and mobile phones. - Tetsuya Miyagawa; Yoshio Yamagishi; Shun Mizuno (Interact. Learn. Environ., 2013)