@article{Nielsen:2001iH,
  author = "Nielsen, Holger Bech  and  Takanishi, Yasutaka",
  title = "{Neutrino oscillations, baryogenesis and neutrinoless double beta decay  }",
  doi = "10.22323/1.007.0217",
  journal = "PoS",
  year = 2001,
  volume = "hep2001",
  pages = "217"
}