@inproceedings{joel1991smooth,
title={Smooth static solutions of the Einstein-Yang/Mills equations},
author={Joel Smoller, A Wasserman, Shing-Tung Yau, and B McLeod},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204932505521243},
booktitle={Bulletin of the American Mathematical Society},
volume={27},
number={2},
pages={239-242},
year={1991},
}

Joel Smoller, A Wasserman, Shing-Tung Yau, and B McLeod. Smooth static solutions of the Einstein-Yang/Mills equations. 1991. Vol. 27. In Bulletin of the American Mathematical Society. pp.239-242. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224204932505521243.