@inproceedings{peng1987on,
title={On the compactness of paracommutators},
author={Peng Lizhong},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203528078085495},
booktitle={Arkiv for Matematik},
volume={26},
number={1},
pages={315-325},
year={1987},
}