@inproceedings{n.1983random,
title={Random walks on groups. Applications to Fuchsian groups},
author={N. Th. Varopoulos},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203519740278428},
booktitle={Arkiv for Matematik},
volume={23},
number={1},
pages={171-176},
year={1983},
}