ZERNOV, A. E.; MELESHKO, T. V. On the Asymptotic Behavior of Solutions of a Singular Cauchy Problem. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 9, p. 1194–1203, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4337. Acesso em: 14 apr. 2025.