[[!redirects Torres_2]] ###Reference Details### +-- cite key : Torres_2 title : Smooth structures on non-orientable four-manifolds and free involutions author : Torres, R. eprint : <http://arxiv.org/abs/1306.2586v1> mrclass : math.GT note : arXiv:1306.2586v1 url : <http://arxiv.org/abs/1306.2586v1> arxiv : [1306.2586](http://www.arxiv.org/abs/1306.2586) refbase : [2080](http://www.math.ntnu.no/~stacey/RefBase/show.php?record=2080) =-- {: .bibliography} --- category: differential geometry