On Weak Projectivity in Arithmetic. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 12, n. 4, p. 1787–1810, 2019. DOI: 10.29020/nybg.ejpam.v12i4.3545. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/3545. Acesso em: 4 dec. 2024.