@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Ba2Ta6Te2O21 / C2/m (12) / materials id 6238},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Ba2Ta6Te2O21, C2/m (12)}
}