@misc{indiciae5411d0c4f247,
  title = {Spin-coupled wave functions for atoms and molecules.},
  author = {J Gerratt and W N Lipscomb},
  year = {1968},
  doi = {10.1073/pnas.59.2.332},
  url = {https://pubmed.ncbi.nlm.nih.gov/16591601/},
  note = {Source identifier: 16591601}
}