DMYTRYSHYN, R.I. The multidimensional $g$-fraction with nonequivalent variables corresponding to the formal multiple power series. Carpathian Mathematical Publications, [S. l.], v. 1, n. 2, p. 145–151, 2009. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/4009. Acesso em: 24 nov. 2024.