@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}, }