@article{10_5427_jsing_2012_4a,
     author = {Nicolau C. Saldanha and Boris Shapiro},
     title = {Spaces of locally convex curves in {S^n} and combinatorics of the group {B^+_{n+1}}},
     journal = {Journal of Singularities},
     pages = {1--22},
     publisher = {mathdoc},
     volume = {4},
     year = {2012},
     doi = {10.5427/jsing.2012.4a},
     url = {http://geodesic.mathdoc.fr/articles/10.5427/jsing.2012.4a/}
}