@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Na4Si3(SnO6)2 / R-3c (167) / materials id 554853},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Na4Si3(SnO6)2, R-3c (167)}
}