@article{10_4171_ggd_209,
     author = {Fran\c{c}ois Dahmani and Koji Fujiwara and Vincent Guirardel},
     title = {Free groups of interval exchange transformations are rare},
     journal = {Groups, geometry, and dynamics},
     pages = {883--910},
     year = {2013},
     volume = {7},
     number = {4},
     doi = {10.4171/ggd/209},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/209/}
}