@article{140631,
  author = {John Burnett and R Gupta and U And},
  title = {Absolute index of refraction and its temperature dependence of calcium fluoride, barium fluoride, and strontium fluoride near 157 nm, ed. by C.H. Progler},
  year = {2000},
  number = {4000},
  month = {2000-01-01},
  publisher = {Optical Microlithography XIII Proc SPIE 4000},
  language = {en},
}