@article{Klapdorï-­Kleingrothaus:2003je,
  author = "Klapdorï-­Kleingrothaus, Hans Volker",
  title = "{Status of absolute neutrino mass and double beta decay}",
  doi = "10.22323/1.010.0066",
  journal = "PoS",
  year = 2003,
  volume = "AHEP2003",
  pages = "066"
}