@misc{atsushi-a,
  title = {Ab-initio phonon calculation for BaSi3SnO9 / P-6c2 (188) / materials id 18502},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, BaSi3SnO9, P-6c2 (188)}
}