@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Na2MgSiO4 / Pna2_1 (33) / materials id 6426},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Na2MgSiO4, Pna2_1 (33)}
}