@misc{indiciaed95d6cb07ace,
  title = {Directional structural features of globular proteins.},
  author = {G M Crippen and I D Kuntz},
  year = {1977},
  doi = {10.1016/0022-5193(77)90311-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/875421/},
  note = {Source identifier: 875421}
}