@misc{atsushi-a,
  title = {Ab-initio phonon calculation for NaNbS2 / P6_3/mmc (194) / materials id 7937},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, NaNbS2, P6_3/mmc (194)}
}