@article{10_4153_CJM_2003_042_4,
     author = {Kellerhals, Ruth},
     title = {Quaternions and {Some} {Global} {Properties} of {Hyperbolic} {5-Manifolds}},
     journal = {Canadian journal of mathematics},
     pages = {1080--1099},
     year = {2003},
     volume = {55},
     number = {5},
     doi = {10.4153/CJM-2003-042-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2003-042-4/}
}