GASANOV, M. V. A NECESSARY AND SUFFICIENT CONDITION FOR THE EXISTENCE OF A MOBILE SINGULAR POINT FOR A NONLINEAR DIFFERENTIAL EQUATION OF THE THIRD ORDER. Vestnik of Brest State Technical University, [S. l.], n. 1(127), p. 13–16, 2022. DOI: 10.36773/1818-1112-2022-127-1-13-16. Disponível em: https://journal.bstu.by/index.php/bstu_herald/article/view/671. Acesso em: 18 may. 2024.