Optimal estimates in problems of practical stability with partially fixed initial conditions and their applications in modeling and optimization of charged particle dynamics. Neliniini Kolyvannya, [S. l.], v. 3, n. 4, p. 442–448, 2000. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/136. Acesso em: 22 jan. 2026.