Ansa, Godwin, Haitham Cruickshank, Zhili Sun, and Feda Alshahwan. “Combating Intra-Region DoS Attacks in Delay Tolerant Networks Using Energy-Efficient Mechanisms”. Asian Journal of Computer and Information Systems 4, no. 5 (October 16, 2016). Accessed October 7, 2022. https://ajouronline.com/index.php/AJCIS/article/view/4042.