@misc{indiciae18d91d8ea3d6,
  title = {Exact exchange functional for the hydrogen atom.},
  author = {PM Gill and JA Pople},
  year = {1993},
  doi = {10.1103/physreva.47.2383},
  url = {https://pubmed.ncbi.nlm.nih.gov/9909197/},
  note = {Source identifier: 9909197}
}