Onyeka-Ubaka, J. N., and U. J. Anene. “Some Forecast Asymmetric GARCH Models for Distributions With Heavy Tails”. International Journal of Mathematical Sciences and Optimization: Theory and Applications 2020, no. 1 (July 6, 2020): 689 - 706. Accessed March 28, 2024. http://ijmso.unilag.edu.ng/article/view/950.