NGOC MINH, Vo. The continuity of solution set of a multi-point boundary problem with a control system. Letters on Applied and Pure Mathematics, [S. l.], v. 1, n. 1, p. 23–31, 2023. Disponível em: https://lapmjournal.com/index.php/lapm/article/view/lapm.2023v1n1-3. Acesso em: 8 sep. 2024.