FEOLA, R.; IANDOLI, F. Long time existence for fully nonlinear NLS with small Cauchy data on the circle. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 22, n. 1, p. 109-182, 2021. DOI: 10.2422/2036-2145.201811_003. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/777. Acesso em: 7 mar. 2026.