@misc{atsushi-a,
  title = {Ab-initio phonon calculation for PrNb3O9 / P2_1/c (14) / materials id 558373},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, PrNb3O9, P2_1/c (14)}
}