@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Na2ZnP2O7 / P4_2/mnm (136) / materials id 6491},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Na2ZnP2O7, P4_2/mnm (136)}
}