@article{GDZPPN002060531, title = {On Spaces of Kleinian Groups}, journal = {Commentarii mathematici Helvetici}, volume = {47}, year = {1972}, pages = {53-69}, zbl = {0239.30020}, url = {http://dml.mathdoc.fr/item/GDZPPN002060531} }
Kra, Irwin. On Spaces of Kleinian Groups. Commentarii mathematici Helvetici, Tome 47 (1972) pp. 53-69. http://gdmltest.u-ga.fr/item/GDZPPN002060531/