@inproceedings{marc1983a,
title={A non-standard ideal of a radical Banach algebra of power series},
author={Marc P. Thomas},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203302047593353},
booktitle={Acta Mathematica},
volume={152},
number={1},
pages={199-217},
year={1983},
}