@misc{indiciaeb91d76f32279,
  title = {Building protein structure and function from modular units.},
  author = {I D Campbell and A K Downing},
  year = {1994},
  doi = {10.1016/0167-7799(94)90078-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/7764899/},
  note = {Source identifier: 7764899}
}