BRANDER, D.; TARI, F. Wave maps and constant curvature surfaces: singularities and bifurcations. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 23, n. 1, p. 361-397, 2022. DOI: 10.2422/2036-2145.202002_008. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/891. Acesso em: 20 feb. 2026.