Frequency conditions for convergence of a control system in a neighborhood of a program manifold. Neliniini Kolyvannya, [S. l.], v. 19, n. 3, p. 367–375, 2016. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/835. Acesso em: 8 dec. 2025.