@misc{indiciae13a529dac7b1,
  title = {Transition Probabilities and Principal Quantum Numbers.},
  author = {F C Hoyt},
  year = {1926},
  doi = {10.1073/pnas.12.4.227},
  url = {https://pubmed.ncbi.nlm.nih.gov/16576983/},
  note = {Source identifier: 16576983}
}