@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Ba4NaCu(CO5)2 / I-42m (121) / materials id 6841},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Ba4NaCu(CO5)2, I-42m (121)}
}