@misc{indiciae6414601b30f1,
  title = {Evolutionary clock - Nonconstancy of rate in different species.},
  author = {Jukes, T. H. and Holmquist, R.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720054885},
  note = {Source identifier: 19720054885}
}