@misc{atsushi-a,
  title = {Ab-initio phonon calculation for Ba3Na2Ti3Nb2O15 / Cmmm (65) / materials id 40873},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, Ba3Na2Ti3Nb2O15, Cmmm (65)}
}