@book{ BA14280237,
  author    = "NATO Advanced Study Institute on Nitrogen Ceramics and Riley, F. L.",
  title     = "Nitrogen ceramics",
  publisher = "Noordhoff",
  year      = "1977",
  series    = "NATO advanced study institutes series",
  number    = "Series E. Applied science ; no. 23",
  URL       = "http://ci.nii.ac.jp/ncid/BA14280237"
}