A Generalization of the Concept of Cointegration to Harmonizable and Class (KF) Processes. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 3, n. 3, p. 519–530, 2010. Disponível em: https://ejpam.com/index.php/ejpam/article/view/804.. Acesso em: 20 jul. 2024.