Bansevičius, R., Gudauskis, M., Žvironas, A., & Virbalis, J. A. (2010). New Approach to 2D Braille Device Design. Elektronika Ir Elektrotechnika, 100(4), 3-6. Retrieved from https://eejournal.ktu.lt/index.php/elt/article/view/9864