DZHUMABAEV, D. S. New general solutions of ordinary differential equations and the methods of solving the boundary-value problems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 7, p. 884–905, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1483. Acesso em: 14 apr. 2025.