Grove, K., Verdiani, L., Wilking, B. and Ziller, W. (2009) “EDITORIAL NOTE Non-negative curvature obstructions in cohomogeneity one and the Kervaire spheres”, ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 5(4), pp. 639-639. doi: 10.2422/2036-2145.2006.4.08.