@misc{atsushi-a,
  title = {Ab-initio phonon calculation for SrYSi4N7 / P6_3mc (186) / materials id 6606},
  author = {Atsushi Togo},
  publisher = {NIMS},
  year = {},
  keywords = {Phonon, SrYSi4N7, P6_3mc (186)}
}