@misc{indiciae3948d807c11d,
  title = {Internal packing and protein structural classes.},
  author = {J W Ponder and F M Richards},
  year = {1987},
  doi = {10.1101/sqb.1987.052.01.049},
  url = {https://pubmed.ncbi.nlm.nih.gov/2841069/},
  note = {Source identifier: 2841069}
}