Feola, Roberto, and Felice Iandoli. “Long Time Existence for Fully Nonlinear NLS With Small Cauchy Data on the Circle”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE 22, no. 1 (March 30, 2021): 109-182. Accessed March 7, 2026. https://journals.sns.it/index.php/annaliscienze/article/view/777.