@inproceedings{bong2007reduced,
title={Reduced Delzant spaces and a convexity theorem},
author={Bong H. Lian, and Bailin Song},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160828152419432160485},
booktitle={Topology},
volume={46},
number={6},
pages={554–576},
year={2007},
}

Bong H. Lian, and Bailin Song. Reduced Delzant spaces and a convexity theorem. 2007. Vol. 46. In Topology. pp.554–576. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160828152419432160485.