@misc{indiciaea92714730510,
  title = {Evolution of human influenza A viruses in nature: recombination contributes to genetic variation of H1N1 strains.},
  author = {J F Young and P Palese},
  year = {1979},
  doi = {10.1073/pnas.76.12.6547},
  url = {https://pubmed.ncbi.nlm.nih.gov/293742/},
  note = {Source identifier: 293742}
}