@article{10372,
  author = {P. Langhoff and C. Corcoran},
  title = {Tchebycheff-derivative approximations to photoabsorption cross sections in atoms and ions},
  year = {1976},
  journal = {Chemical Physics Letters},
  volume = {40},
  pages = {367-371},
  month = {Jan-06-1976},
  issn = {00092614},
  url = {http://linkinghub.elsevier.com/retrieve/pii/0009261476850981},
  doi = {10.1016/0009-2614(76)85098-1},
}