FIGUEROA SERRUDO, Christian Bernardo. Weierstrass formula for minimal surfaces in Heisenberg group. Pro Mathematica, [S. l.], v. 13, n. 25-26, p. 71–85, 1999. Disponível em: https://revistas.pucp.edu.pe/index.php/promathematica/article/view/8151. Acesso em: 11 dic. 2025.