@misc{indiciaefba17a1e7afe,
  title = {Immunoglobulin structure: variability and homology.},
  author = {F W Putnam},
  year = {1969},
  doi = {10.1126/science.163.3868.633},
  url = {https://pubmed.ncbi.nlm.nih.gov/4178710/},
  note = {Source identifier: 4178710}
}