@misc{atsushi-a,
  title = {Ab-initio phonon calculation for K3Na3(NO4)2 / Pbcn (60) / materials id 557181},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, K3Na3(NO4)2, Pbcn (60)}
}