Periša, Marko, Dragan Peraković, and Slavko Šarić. “Conceptual Model of Providing Traffic Navigation Services to Visually Impaired Persons”. Promet - Traffic&Transportation 26, no. 3 (May 26, 2014): 209–218. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2473.