@inproceedings{hannes2018the,
title={The variation of the maximal function of a radial function},
author={Hannes Luiro},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191204094608601671565},
booktitle={Arkiv for Matematik},
volume={56},
number={1},
pages={147-161},
year={2018},
}