WATANABE, W. M. ., R. J. GERALDO, and R. P. D. M. . FORTES. “KEYBOARD NAVIGATION MECHANISMS IN WIDGETS: AN INVESTIGATION ON ARIA’S IMPLEMENTATIONS”. Journal of Web Engineering, vol. 14, no. 1-2, Mar. 2015, pp. 041-62, https://journals.riverpublishers.com/index.php/JWE/article/view/3889.