@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Nb2Bi2PbO9 / I4/mmm (139) / materials id 23101},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Nb2Bi2PbO9, I4/mmm (139)}
}