@article{10_4153_S0008414X20000036,
     author = {Kellerhals, Ruth},
     title = {Ideal {Uniform} {Polyhedra} in $\mathbb{H}^{n}$ and {Covolumes} of {Higher} {Dimensional} {Modular} {Groups}},
     journal = {Canadian journal of mathematics},
     pages = {465--492},
     year = {2021},
     volume = {73},
     number = {2},
     doi = {10.4153/S0008414X20000036},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008414X20000036/}
}