@inproceedings{xuhua2006closures,
title={Closures of Steinberg fibers in twisted wonderful compactifications},
author={Xuhua He, and Jesper Funch Thomsen},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191221112911183131760},
booktitle={Transformation groups},
volume={11},
number={3},
pages={427-438},
year={2006},
}
Xuhua He, and Jesper Funch Thomsen. Closures of Steinberg fibers in twisted wonderful compactifications. 2006. Vol. 11. In Transformation groups. pp.427-438. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191221112911183131760.