LIMANSKY, D. V. On estimates for a system of maximal differential polynomials without mixed derivatives. Methods of Functional Analysis and Topology, [S. l.], v. 9, n. 1, p. 59–79, 2003. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/204. Acesso em: 17 dec. 2025.