LAVRIČ, B. A NOTE ON FLAT MODULES OVER $f$-ALGEBRAS. Tamkang Journal of Mathematics, [S. l.], v. 22, n. 4, p. 371–375, 1991. DOI: 10.5556/j.tkjm.22.1991.4625. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4625. Acesso em: 6 may. 2024.