@inproceedings{robert1980two,
title={Two problems on removable sets for analytic functions},
author={Robert Kaufman},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203511723156361},
booktitle={Arkiv for Matematik},
volume={20},
number={1},
pages={15-22},
year={1980},
}