@book{ BA68368604,
  author    = "Symposium on diffraction gratings and grating instruments and 波岡, 武 and 日本分光学会",
  title     = "Proceedings of the symposium on diffraction gratings and grating instruments, Tokyo, August 31, 1974",
  publisher = "Spectroscopical Society of Japan",
  year      = "1974",
  URL       = "https://ci.nii.ac.jp/ncid/BA68368604"
}