BURSTALL, F.; MUSSO, E.; PEMBER, M. Quartic differentials and harmonic maps in conformal surface geometry. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 23, n. 3, p. 1507-1524, 2022. DOI: 10.2422/2036-2145.202007_112. Disponível em: http://20.103.181.36/index.php/annaliscienze/article/view/5439. Acesso em: 27 may. 2025.