@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Ba5Er8Zn4O21 / I4/m (87) / materials id 6416},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Ba5Er8Zn4O21, I4/m (87)}
}