CHANILLO, S.; C. YANG, P. Isoperimetric inequalities & volume comparison theorems on CR manifolds. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 8, n. 2, p. 279-307, 2009. DOI: 10.2422/2036-2145.2009.2.03. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/575. Acesso em: 20 feb. 2026.