@article{article,
  author = {James Sims and Maria Ruiz and Bholanath Padhy},
  title = {Exponentially correlated Hylleraas-Configuration Interaction studies of atomic systems. IV. The Five Lowest singlet S and Five Lowest singlet P States of He and Oscillator Strengths, including Upper and Lower Bounds, for their Allowed Transitions},
  year = {2026},
  number = {14},
  month = {2026-10-06 04:10:00},
  publisher = {Atoms},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=962494},
  language = {en},
}