BARBIERI, Giuseppina. A NOTE ON THE CAFIERO CRITERION IN EFFECT ALGEBRAS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 34, p. 17–22, 2015. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6308. Acesso em: 7 aug. 2026.