Template:Boileau&Leeb&Porti2005
From Manifold Atlas
M. Boileau, B. Leeb and J. Porti, Geometrization of 3-dimensional orbifolds, Ann. of Math. (2) 162 (2005), no.1, 195–290. MR2178962 (2007f:57028) Zbl 1087.57009