REGE, Sameer; MARTÍN, Samuel Gil. Portuguese stock market: A long-memory process?. Business: Theory and Practice, [S. l.], v. 12, n. 1, p. 75–84, 2011. DOI: 10.3846/btp.2011.08. Disponível em: https://journals.vilniustech.lt/index.php/BTP/article/view/8853. Acesso em: 12 jul. 2025.