PRUCHNICKA-GRABIAS, Izabela. The Relationship between Gold and Brent Crude Oil Prices: An Unrestricted Vector Autoregression Approach. International Journal of Energy Economics and Policy, [S. l.], v. 11, n. 4, p. 276–282, 2021. Disponível em: https://mail.econjournals.org.tr/index.php/ijeep/article/view/11229. Acesso em: 25 jan. 2025.