@inproceedings{john2009density,
title={Density of the polynomials in Hardy and Bergman spaces of slit domains},
author={John R. Akeroyd},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203628865667990},
booktitle={Arkiv for Matematik},
volume={49},
number={1},
pages={1-16},
year={2009},
}
John R. Akeroyd. Density of the polynomials in Hardy and Bergman spaces of slit domains. 2009. Vol. 49. In Arkiv for Matematik. pp.1-16. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203628865667990.