@inproceedings{zilin2021equiangular,
title={Equiangular lines with a fixed angle},
author={Zilin Jiang, Jonathan Tidor, Yuan Yao, Shengtong Zhang, and Yufei Zhao},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20220318131157455833008},
booktitle={Annals of Mathematics},
volume={194},
number={3},
pages={729-743},
year={2021},
}

Zilin Jiang, Jonathan Tidor, Yuan Yao, Shengtong Zhang, and Yufei Zhao. Equiangular lines with a fixed angle. 2021. Vol. 194. In Annals of Mathematics. pp.729-743. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20220318131157455833008.