ZHANG, Zitai. Design of a Crossroad Traffic Light System. Highlights in Science, Engineering and Technology, [S. l.], v. 97, p. 29–39, 2024. DOI: 10.54097/gvt3cd17. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/20762. Acesso em: 25 jun. 2026.