ORRIOLS GIMÉNEZ, G. A negative result for hearing the shape of a triangle: a computer-assisted proof. Reports@SCM, [S. l.], v. 5, n. 1, p. 33–44, 2020. Disponível em: https://revistes.iec.cat/index.php/reports/article/view/148601. Acesso em: 6 may. 2024.