ONER, T.; KALKAN, T.; KIRCALI GURSOY, N. Sheffer stroke BG-algebras. International Journal of Maps in Mathematics, [S. l.], v. 4, n. 1, p. 27–39, 2021. Disponível em: http://journalmim.com/index.php/journalMIM/article/view/74. Acesso em: 29 apr. 2024.