@misc{indiciaef60124d0072d,
  title = {Speciation along environmental gradients.},
  author = {Michael Doebeli and Ulf Dieckmann},
  year = {2003},
  doi = {10.1038/nature01274},
  url = {https://pubmed.ncbi.nlm.nih.gov/12529641/},
  note = {Source identifier: 12529641}
}