@inproceedings{n.1969groups,
title={Groups of continuous functions in harmonic analysis},
author={N. Th. Varopoulos},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203220288353097},
booktitle={Acta Mathematica},
volume={125},
number={1},
pages={109-154},
year={1969},
}