@inproceedings{håkan1996maximal,
title={Maximal invariant subspaces in the Bergman space},
author={Håkan Hedenmalm},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203552320113695},
booktitle={Arkiv for Matematik},
volume={36},
number={1},
pages={97-101},
year={1996},
}