KULZHUMIYEVA, A.A.; SARTABANOV, Zh.A. On reducibility of linear De-system with constant coefficients on the diagonal to De-system with Jordan matrix in the case of equivalence of its higher order one equation. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 84, n. 4, p. 88–93, 2016. DOI: 10.31489/2016m4/88-93. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/129. Acesso em: 23 aug. 2025.