BOBOCHKO, V. N. On the structure of solutions of a system of singularly perturbed differential equations with nondiagonalizable limit operator. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 7, p. 867–876, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4867. Acesso em: 7 apr. 2025.