El-Sofany, Hosam F., and Samir Abou El-Seoud. “Performance Analysis of an Effective Approach to Protect Cloud Systems Against Application Layer Based Attacks”. International Journal of Online and Biomedical Engineering (iJOE), vol. 15, no. 03, Feb. 2019, pp. pp. 82-95, doi:10.3991/ijoe.v15i03.9931.