@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Na2Zn2Si2O7 / Ama2 (40) / materials id 6507},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Na2Zn2Si2O7, Ama2 (40)}
}