@article{ASNSP_2006_5_5_4_639_0,
     author = {Grove, Karsten and Verdiani, Luigi and Wilking, Burkhard and Ziller, Wolfgang},
     title = {Editorial note : {{\textquotedblleft}Non-negative} curvature obstructions in cohomogeneity one and the {Kervaire} spheres{\textquotedblright}},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {639--639},
     publisher = {Scuola Normale Superiore, Pisa},
     volume = {Ser. 5, 5},
     number = {4},
     year = {2006},
     mrnumber = {2297725},
     zbl = {1170.53307},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_2006_5_5_4_639_0/}
}