Multifractal Behaviour in Natural Gas Prices by using MF-DF A and WT MM Methods. Global Journal of Management and Business Research, [S. l.], v. 13, n. 43, p. 1–5, 2013. Disponível em: https://journalofbusiness.org/index.php/GJMBR/article/view/. Acesso em: 18 oct. 2026.