@misc{indiciae24854d5962d3,
  title = {Bound-bound two-photon transition matrix elements for the hydrogen atom in the dipole approximation.},
  author = {TA Marian},
  year = {1989},
  doi = {10.1103/physreva.39.3816},
  url = {https://pubmed.ncbi.nlm.nih.gov/9901701/},
  note = {Source identifier: 9901701}
}