@misc{indiciae9921050658b5,
  title = {Integrated spatial electron populations in molecules: The electron projection function.},
  author = {A Streitwieser and J B Collins and J M McKelvey and D Grier and J Sender and A G Toczko},
  year = {1979},
  doi = {10.1073/pnas.76.6.2499},
  url = {https://pubmed.ncbi.nlm.nih.gov/16592660/},
  note = {Source identifier: 16592660}
}