BENNER, P.; CHUIKO, S.; NESMELOVA, O. Least-squares method in the theory of nonlinear boundary-value problems unsolved with respect to the derivative. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 75, n. 1, p. 38–51, 2023. DOI: 10.37863/umzh.v75i1.7408. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/7408. Acesso em: 5 dec. 2025.