@inproceedings{håkan1989closed, title={Closed ideals in the bidisc algebra}, author={Håkan Hedenmalm}, url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203531627164528}, booktitle={Arkiv for Matematik}, volume={28}, number={1}, pages={111-117}, year={1989}, }