@inproceedings{jeffrey2003on,
title={On the density of geometrically finite Kleinian groups},
author={Jeffrey F. Brock, and Kenneth W. Bromberg},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203343981117646},
booktitle={Acta Mathematica},
volume={192},
number={1},
pages={33-93},
year={2003},
}
Jeffrey F. Brock, and Kenneth W. Bromberg. On the density of geometrically finite Kleinian groups. 2003. Vol. 192. In Acta Mathematica. pp.33-93. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203343981117646.