CERQUEIRA BERNI, J.; LUIZ MARIANO, H. A Universal Algebraic Survey of C∞-Rings. Latin American Journal of Mathematics, [S. l.], v. 1, n. 01, p. 8–39, 2022. Disponível em: https://www.lajm.ufscar.br/index.php/capa/article/view/5. Acesso em: 6 may. 2024.