@inproceedings{christian1990rotation,
title={Rotation invariant moment problems},
author={Christian Berg, and Marco Thill},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203317036203462},
booktitle={Acta Mathematica},
volume={167},
number={1},
pages={207-227},
year={1990},
}