VECCHIO, Renata del. A note on Smulians theorem. Pro Mathematica, [S. l.], v. 11, n. 21-22, p. 65–69, 1997. Disponível em: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/6088. Acesso em: 12 dic. 2025.