Baláž, Martin, and Juraj Vaculík. “Enhancing Public Health Safety and Transportation Efficiency – A Comprehensive RFID-Based System for Vaccination and Testing Verification”. Promet - Traffic&Transportation 35, no. 6 (December 20, 2023): 947–958. Accessed April 5, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/352.