@inproceedings{chunna2018sl(n),
title={SL(n) covariant vector valuations on polytopes},
author={Chunna Zeng, and Dan Ma},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20190320131243178119216},
booktitle={Transactions of the American Mathematical Society},
volume={370},
number={12},
pages={8999–9023},
year={2018},
}

Chunna Zeng, and Dan Ma. SL(n) covariant vector valuations on polytopes. 2018. Vol. 370. In Transactions of the American Mathematical Society. pp.8999–9023. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20190320131243178119216.