Boundary-value problem for a system of linear inhomogeneous first-order differential equations with rectangular matrices on the whole axis. Neliniini Kolyvannya, [S. l.], v. 23, n. 3, p. 343–362, 2020. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/995. Acesso em: 12 apr. 2026.