@inproceedings{andreas2012bad,
title={Bad boundary behavior in star-invariant subspaces I},
author={Andreas Hartmann, and William T. Ross},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203636388407051},
booktitle={Arkiv for Matematik},
volume={52},
number={1},
pages={113-134},
year={2012},
}
Andreas Hartmann, and William T. Ross. Bad boundary behavior in star-invariant subspaces I. 2012. Vol. 52. In Arkiv for Matematik. pp.113-134. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203636388407051.