@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Ca4Si6Pb6Cl2O21 / P6_3/m (176) / materials id 558268},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Ca4Si6Pb6Cl2O21, P6_3/m (176)}
}