[1]
R. Bansevičius, M. Gudauskis, A. Žvironas, and J. A. Virbalis, “New Approach to 2D Braille Device Design”, ELEKTRON ELEKTROTECH, vol. 100, no. 4, pp. 3–6, Mar. 2010, doi: 10.5755/j02.eie.9864.