Costoya, CScherer, JViruel, A2018-11-082018-11-082018-11-08201810.4310/ARKIV.2018.v56.n1.a5https://infoscience.epfl.ch/handle/20.500.14299/149793WOS:000431280900005A torus theorem for homotopy nilpotent loop spacestext::journal::journal article::research article