@inproceedings{svante1977mean,
title={Mean oscillation and commutators of singular integral operators},
author={Svante Janson},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203504200878298},
booktitle={Arkiv for Matematik},
volume={16},
number={1},
pages={263-270},
year={1977},
}
Svante Janson. Mean oscillation and commutators of singular integral operators. 1977. Vol. 16. In Arkiv for Matematik. pp.263-270. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203504200878298.