DJEBALI, S.; MEBARKI, K. Systems of φ-Laplacian three-point boundary-value problems on the positive half-line. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 12, p. 1626–1648, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2096. Acesso em: 14 apr. 2025.