@misc{huang2015constraints,
  title={Constraints on millicharged particles by neutron stars},
  author={Xi Huang and Xiao-Ping Zheng and Wei-Hua Wang and Shao-Ze Li},
  year={2015},
  eprint={1509.07620},
  archivePrefix={arXiv},
  primaryClass={astro-ph.HE},
  doi={10.1103/PhysRevD.91.123513},
  url={https://arxiv.org/abs/1509.07620}
}