%0 Journal Article %A Kellerhals, Ruth %T Ideal Uniform Polyhedra in $\mathbb{H}^{n}$ and Covolumes of Higher Dimensional Modular Groups %J Canadian journal of mathematics %D 2021 %P 465-492 %V 73 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008414X20000036/ %R 10.4153/S0008414X20000036 %F 10_4153_S0008414X20000036