SENTURK, I.; ONER, T. A construction of very true operator on Sheffer stroke MTL-algebras. International Journal of Maps in Mathematics, [S. l.], v. 4, n. 2, p. 93–106, 2021. Disponível em: https://simadp.com/journalmim/article/view/92. Acesso em: 3 apr. 2025.