M. A. MALKOV. Complete generators in 4-valued logic and Rousseau’s results. International Journal of Mathematics And its Applications, [S. l.], v. 2, n. 4, p. 49–57, 2014. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/318. Acesso em: 22 jul. 2024.