@article{Naka:2015nI,
  author = "Naka, Tatsuhiro",
  title = "{Nuclear Emulsion Technology and Directional Dark Matter Study}",
  doi = "10.22323/1.208.0017",
  journal = "PoS",
  year = 2015,
  volume = "KMI2013",
  pages = "017"
}