@inproceedings{torben1996semigroups,
title={Semigroups of moment functions},
author={Torben Maack Bisgaard},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203549979337676},
booktitle={Arkiv for Matematik},
volume={35},
number={1},
pages={127-156},
year={1996},
}