@misc{1162231,
  author = {Lucy Hagan},
  title = {Bibliography on atomic energy levels and spectra, July 1971 through June 1975:},
  year = {1977},
  month = {1977-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.363supp1},
  language = {en},
}