@misc{atsushi-a,
  title = {Ab-initio phonon calculation for K2Si3SnO9 / P6_3/m (176) / materials id 18243},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, K2Si3SnO9, P6_3/m (176)}
}