@inproceedings{jein-shan2016non-lerfness,
title={NON-LERFNESS OF ARITHMETIC HYPERBOLIC MANIFOLD GROUPS AND MIXED 3-MANIFOLD GROUPS},
author={Jein-Shan Chen, Gue Myung Lee, Mohamed A Tawhid, and Hongbin Sun},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191110013116481127506},
booktitle={Duke Math Journal},
volume={168},
number={4},
pages={655–696},
year={2016},
}
Jein-Shan Chen, Gue Myung Lee, Mohamed A Tawhid, and Hongbin Sun. NON-LERFNESS OF ARITHMETIC HYPERBOLIC MANIFOLD GROUPS AND MIXED 3-MANIFOLD GROUPS. 2016. Vol. 168. In Duke Math Journal. pp.655–696. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191110013116481127506.