ANALYZING THE COVARIANCE MATRIX APPROACH FOR DDOS HTTP ATTACK DETECTION IN CLOUD ENVIRONMENTS. International Journal of Information Technology and Computer Engineering, [S. l.], v. 7, n. 1, p. 48–63, 2019. Disponível em: https://ijitce.org/index.php/ijitce/article/view/90. Acesso em: 24 jan. 2026.