ZAGORODNYUK, S. M. On the strong matrix Hamburger moment problem. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 4, p. 471–482, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2881. Acesso em: 6 dec. 2025.