LIMANSKY, V. V.; LIMANSKY, D. V. On estimates for a system of maximal differential operators. Methods of Functional Analysis and Topology, [S. l.], v. 4, n. 3, p. 45–57, 1998. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/67. Acesso em: 18 dec. 2025.