BOVE, A.; MUGHETTI, M. Optimal Gevrey regularity for certain sums of squares in two variables. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 25, n. 4, p. 1877-1966, 2024. DOI: 10.2422/2036-2145.202205_011. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/5912. Acesso em: 24 mar. 2025.