LEYDA ALMODOVAR et al. A closed-form solution might be given by a tree. Valuations of quadratic polynomials. Scientia Series A: Mathematical Sciences, [S. l.], v. 29, p. 11–28, 2019. DOI: 10.71712/td8n-aj13. Disponível em: https://revistas.usm.cl/scientia/article/view/45. Acesso em: 5 oct. 2025.