@inproceedings{lennart1952on,
title={On bounded analytic functions and closure problems},
author={Lennart Carleson},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203415724816882},
booktitle={Arkiv for Matematik},
volume={2},
number={2},
pages={283-291},
year={1952},
}