@article{10_4171_ggd_86,
     author = {Shawn Rafalski},
     title = {Immersed turnovers in hyperbolic 3-orbifolds},
     journal = {Groups, geometry, and dynamics},
     pages = {333--376},
     year = {2010},
     volume = {4},
     number = {2},
     doi = {10.4171/ggd/86},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/86/}
}