@misc{tokutani2009signature,
  title={The 21cm Signature of Early Relic \HII Regions},
  author={Midori Tokutani and Naoki Yoshida and S. Peng Oh and Naoshi Sugiyama},
  year={2009},
  eprint={0902.1018},
  archivePrefix={arXiv},
  primaryClass={astro-ph.CO},
  doi={10.1111/j.1365-2966.2009.14604.x},
  url={https://arxiv.org/abs/0902.1018}
}