KNOPOVA, V. P. Continuity of certain pseudodifferential operators in spaces of generalized smoothness. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 5, p. 638–652, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3482. Acesso em: 6 dec. 2025.