A canonic matrix Frobenius form of a mechanical counterpart of an even order dynamical system. Neliniini Kolyvannya, [S. l.], v. 15, n. 2, p. 223–232, 2012. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/647. Acesso em: 21 jan. 2026.