@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Ca7NbSi2N9 / P2_1/m (11) / materials id 567722},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Ca7NbSi2N9, P2_1/m (11)}
}