SEMENCHUK , A.V. Paradeterminants and formal exponential series. Carpathian Mathematical Publications, [S. l.], v. 1, n. 1, p. 85–91, 2009. Disponível em: https://ktipe.pnu.edu.ua/index.php/cmp/article/view/2572. Acesso em: 17 may. 2025.