@article{HagemannGudatKunz2006,
  author    = {Hans-J{\"u}rgen Hagemann and W. Gudat and C. Kunz},
  title     = {Optical constants from the far infrared to the X-ray region: Mg, Al, Cu, Ag, Au, Bi, C, and Al2O3. Hagemann, H. J.; Gudat, W.; Kunz, C.},
  journal   = {Journal of the Optical Society of America (JOSA). 65 (1975)},
  pages     = {742 -- 744},
  year      = {2006},
}