[[!redirects Murray+Vozzo_2]] ###Reference Details### +-- cite key : Murray+Vozzo_2 title : Circle actions, central extensions and string structures author : Murray, M.K.; Vozzo, R.F. eprint : <http://arxiv.org/abs/1004.0779v1> mrclass : math.DG note : arXiv:1004.0779v1; 25 pages url : <http://arxiv.org/abs/1004.0779v1> arxiv : [1004.0779](http://www.arxiv.org/abs/1004.0779) refbase : [1742](http://www.math.ntnu.no/~stacey/RefBase/show.php?record=1742) =-- {: .bibliography} --- category: loop spaces