@misc{1171606,
  author = {Charlotte E Moore},
  title = {Atomic energy levels as derived from the analyses of optical spectra ::volume III. 42Mo to 57La, 72Hf to 89Ac},
  year = {1971},
  month = {1971-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.NSRDS.35v3},
  language = {en},
}