@article{10_4171_ggd_214,
     author = {Juan Alonso},
     title = {Measure free factors of free groups},
     journal = {Groups, geometry, and dynamics},
     pages = {1--21},
     year = {2014},
     volume = {8},
     number = {1},
     doi = {10.4171/ggd/214},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/214/}
}