@inproceedings{steven2011an,
title={An improved Riemann mapping theorem and complexity in potential theory},
author={Steven R. Bell},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203635431101043},
booktitle={Arkiv for Matematik},
volume={51},
number={2},
pages={223-249},
year={2011},
}

Steven R. Bell. An improved Riemann mapping theorem and complexity in potential theory. 2011. Vol. 51. In Arkiv for Matematik. pp.223-249. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203635431101043.