Yanagihara, Takao, Kiyohiro Omori, and Hiroshi Kitagawa. “Legibility of Japanese Characters in Graphic Floor Signs for Elderly People”. Journal of Accessibility and Design for All 12, no. 2 (November 30, 2022): 335–353. Accessed December 1, 2024. https://www.jacces.org/index.php/jacces/article/view/357.