A classification of linear operators with minimal polinomial $f(t) = (t-a)(t-b)$, $a \neq b$, acting in a filtered vector space. Neliniini Kolyvannya, [S. l.], v. 3, n. 1, p. 31–35, 2000. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/92. Acesso em: 22 jan. 2026.