GROVE, K.; VERDIANI, L.; WILKING, B.; ZILLER, W. EDITORIAL NOTE Non-negative curvature obstructions in cohomogeneity one and the Kervaire spheres. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 5, n. 4, p. 639-639, 2009. DOI: 10.2422/2036-2145.2006.4.08. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/112. Acesso em: 20 feb. 2026.