@inproceedings{xiaoping1993self-dual,
title={Self-dual lattices of type$A$},
author={Xiaoping Xu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170108203325301354520},
booktitle={Acta Mathematica},
volume={175},
number={1},
pages={123-150},
year={1993},
}