ROMANOV, V. A. Vector measures of various smoothness classes and their limits. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 47, n. 4, p. 512–516, 1995. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5449. Acesso em: 14 apr. 2025.