Khedr, Ahmed, and Arwa Attia. “New Holes and Boundary Detection Algorithm for Heterogeneous Wireless Sensor Networks”. International Journal of Communication Networks and Information Security (IJCNIS) 10, no. 1 (April 20, 2018). Accessed April 26, 2024. https://ijcnis.org/index.php/ijcnis/article/view/2973.