@misc{indiciaed30280ffbb97,
  title = {Spectral classification of U II energy levels using pattern-recognition techniques.},
  author = {RV Lewis and KL Peterson},
  year = {1988},
  doi = {10.1103/physreva.38.3773},
  url = {https://pubmed.ncbi.nlm.nih.gov/9900819/},
  note = {Source identifier: 9900819}
}