@inproceedings{joan1998on,
title={On the$T$(1)-theorem for the Cauchy integral},
author={Joan Verdera},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203558828683746},
booktitle={Arkiv for Matematik},
volume={38},
number={1},
pages={183-199},
year={1998},
}