@misc{indiciae75250525ea6e,
  title = {High spontaneous mutation rate of an avian sarcoma virus.},
  author = {D A Zarling and H M Temin},
  year = {1975},
  doi = {10.1128/jvi.17.1.74-84.1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/173893/},
  note = {Source identifier: 173893}
}