Barton, Nicholas H, Steve Jones, and James Mallet. “No Barriers to Speciation.”https://doi.org/10.1038/336013a0__Nature. Springer Nature, 1988.https://doi.org/10.1038/336013a0 .

Coyne, Jerry, and Nicholas H Barton. “What Do We Know about Speciation?”https://doi.org/10.1038/331485a0__Nature. Nature Publishing Group, 1988.https://doi.org/10.1038/331485a0 .

Barton, Nicholas H, and Steve Jones. “Molecular Evolutionary Genetics.”https://doi.org/10.1038/332597a0__Nature. Springer Nature, 1988.https://doi.org/10.1038/332597a0 .

Barton, Nicholas H, and Steve Jones. “Mitochondrial DNA: New Clues about Evolution.”https://doi.org/10.1038/306317a0__Nature. Springer Nature, 1983.https://doi.org/10.1038/306317a0 .