Linear extensions of dynamical systems on a torus with a degenerate matrix. Neliniini Kolyvannya, [S. l.], v. 27, n. 4, p. 502–516, 2024. DOI: 10.3842/nosc.v27i4.1481. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/1163. Acesso em: 6 dec. 2025.