On the solution of the nonlinear periodic boundary-value problem with switchings in the case of parametric resonance by the Newton – Kantorovich method. Neliniini Kolyvannya, [S. l.], v. 26, n. 2, p. 294–308, 2023. DOI: 10.37863/nosc.v26i2.1423. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/1105. Acesso em: 10 mar. 2026.