HASSLER, Uwe. TIME-VARYING VOLATILITY AND NON-STATIONARY TIME SERIES - A Contribution to the Nobel Prize for Robert F. Engle and Clive W. J. Granger. Journal of European Economy, [S. l.], v. 3, n. 1, p. 33–42, 2018. Disponível em: https://jeej.wunu.edu.ua/index.php/enjee/article/view/1145. Acesso em: 24 nov. 2024.