Mostafaei, Hamidreza, et al. “A Methodology for the Choice of the Best Fitting Continuous-Time Stochastic Models of Crude Oil Price: The Case of Russia”. International Journal of Energy Economics and Policy, vol. 3, no. 2, Mar. 2013, pp. 137-42, https://mail.econjournals.com/index.php/ijeep/article/view/370.