@article{10_4171_ggd_231,
     author = {Ilya Kapovich and Kasra Rafi},
     title = {On hyperbolicity of free splitting and free factor complexes},
     journal = {Groups, geometry, and dynamics},
     pages = {391--414},
     year = {2014},
     volume = {8},
     number = {2},
     doi = {10.4171/ggd/231},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/231/}
}