@misc{atsushi-a,
  title = {Ab-initio phonon calculation for NaNbO3 / Pca2_1 (29) / materials id 558920},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, NaNbO3, Pca2_1 (29)}
}