Bouazizi, T., M. Lassoued, and Z. Hadhek. “Oil Price Volatility Models During Coronavirus Crisis: Testing With Appropriate Models Using Further Univariate GARCH and Monte Carlo Simulation Models”. International Journal of Energy Economics and Policy, vol. 11, no. 1, Dec. 2020, pp. 281-92, https://www.econjournals.com/index.php/ijeep/article/view/10374.