@misc{indiciae1590097b9b05,
  title = {Why three generations?},
  author = {Ibe, Masahiro and Kusenko, Alexander and Yanagida, Tsutomu T.},
  year = {2016},
  doi = {10.1016/j.physletb.2016.05.025},
  url = {https://www.osti.gov/biblio/1253026},
  note = {Source identifier: 1253026}
}