GORBACHUK, V. I.; GORBACHUK, M. L. On the Cauchy problem for differential equations in a Banach space over the field of p-adic numbers. Methods of Functional Analysis and Topology, [S. l.], v. 9, n. 3, p. 207–212, 2003. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/216. Acesso em: 19 dec. 2025.