@article{1183527227,
author = {Beardon, A. F.},
title = {The Hausdorff dimension of singular sets of properly discontinuous groups in $N$-dimensional space},
journal = {Bull. Amer. Math. Soc.},
volume = {71},
number = {6},
year = {1965},
pages = { 610-615},
language = {en},
url = {http://dml.mathdoc.fr/item/1183527227}
}
Beardon, A. F. The Hausdorff dimension of singular sets of properly discontinuous groups in $N$-dimensional space. Bull. Amer. Math. Soc., Tome 71 (1965) no. 6, pp. 610-615. http://gdmltest.u-ga.fr/item/1183527227/