DMYTRYSHYN, M.I.; LOPUSHANSKY, O.V. Lorentz type spaces of ultrasmooth vectors of closed operators. Carpathian Mathematical Publications, [S. l.], v. 1, n. 1, p. 8–14, 2009. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/4000. Acesso em: 20 may. 2024.