@misc{atsushi-a,
  title = {Ab-initio phonon calculation for NaTi2(PO4)3 / R-3c (167) / materials id 6761},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, NaTi2(PO4)3, R-3c (167)}
}