Chikobvu, Delson, and Owen Jakata. “Analysing Extreme Risk in the South African Financial Index (J580) Using the Generalised Extreme Value Distribution”. Statistics, Optimization & Information Computing 8, no. 4 (September 26, 2020): 915-933. Accessed November 15, 2024. http://47.88.85.238/index.php/soic/article/view/866.