@article{10_4171_ggd_331,
     author = {Lewis Bowen},
     title = {Invariant random subgroups of the free group},
     journal = {Groups, geometry, and dynamics},
     pages = {891--916},
     year = {2015},
     volume = {9},
     number = {3},
     doi = {10.4171/ggd/331},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/331/}
}