ROITBERG, Ya. A.; SKLYARETS, A. V. Sobolev problem in the complete scale of Banach Spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 11, p. 1555–1563, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5209. Acesso em: 14 apr. 2025.