AlHrazi, Firdaus, Malek Algabri, and Abdualmajed Ahmed Al-Khulaidi. “Hierarchical Blockchain As Line Defense of Attacks to Messages Propagation in VANET”. Sana’a University Journal of Applied Sciences and Technology 1, no. 3 (September 20, 2023). Accessed November 24, 2024. https://journals.su.edu.ye/index.php/jast/article/view/370.