YANOVSKII, L. P. Application of the Numerical-Analytic Method to Systems of Differential Equations with Parameter. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 4, p. 545–554, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4091. Acesso em: 5 dec. 2025.