KUWERT, E.; SCHÄTZLE, R. Closed surfaces with bounds on their Willmore energy. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 11, n. 3, p. 605-634, 2012. DOI: 10.2422/2036-2145.201010_004. Disponível em: http://20.103.181.36/index.php/annaliscienze/article/view/274. Acesso em: 28 may. 2025.