@inproceedings{anders1974connections,
title={Connections between two set functions},
author={Anders Hyllengren},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203456685474232},
booktitle={Arkiv for Matematik},
volume={13},
number={1},
pages={273-285},
year={1974},
}