@article{Niino:2015Ys,
  author = "Niino, Yuu  and  Nagamine, Kentaro  and  Zhang, B.",
  title = "{Metallicity Measurements of GRB Explosion Sites: Lessons from HII regions in M31}",
  doi = "10.22323/1.233.0091",
  journal = "PoS",
  year = 2015,
  volume = "SWIFT 10",
  pages = "091"
}