@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Th2Ta2O9 / C222_1 (20) / materials id 29368},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Th2Ta2O9, C222_1 (20)}
}