Informational efficiency of gold markets in Paris and London, 1948-2008: Econometric verification of weak form. Journal of Academic Finance, [S. l.], v. 2, n. 1, 2011. DOI: 10.59051/joaf.v2i1.12. Disponível em: https://www.scientific-society.com/AF/article/view/12. Acesso em: 25 dec. 2025.