SETTAR, Abdeljalil; FATMI, Nadia Idrissi; BADAOUI, Mohammed. New Approach in Dealing with the Non-Negativity of the Conditional Variance in the Estimation of GARCH Model. Central European Journal of Economic Modelling and Econometrics, [S. l.], v. 13, n. 1, p. 55–74, 2020. DOI: 10.24425/cejeme.2021.137355. Disponível em: https://wydawnictwo.pan.pl/index.php/cejeme/article/view/101. Acesso em: 27 feb. 2026.