@misc{indiciaed76d3ac08a5f,
  title = {Cascading speciation.},
  author = {M Slatkin},
  year = {1974},
  doi = {10.1038/252701a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4437620/},
  note = {Source identifier: 4437620}
}