N. H. Barton, “Population genetics: A new apportionment of human diversity,” Current Biology, vol. 7, no. 12. Cell Press, pp. 757–758, 1997.
LibreCat: https://research-explorer.ista.ac.at/record/4289
DOI: 10.1016/S0960-9822(06)00397-6

N. H. Barton, “Speciation: more than the sum of its parts,” in Current Biology, vol. 6, Cell Press, 1996, pp. 1244–1246.
LibreCat: https://research-explorer.ista.ac.at/record/4295
DOI: 10.1016/S0960-9822(02)70707-0
PMID: 8939554

N. H. Barton, “Why species and subspecies?,” Current Biology, vol. 3, no. 11. Cell Press, pp. 797–799, 1993.
LibreCat: https://research-explorer.ista.ac.at/record/4304
DOI: 10.1016/0960-9822(93)90036-N