Szymura, Jacek, and Nicholas H Barton. “The Genetic Structure of the Hybrid Zone between the Fire-Bellied Toads Bombina Bombina and B. Variegata: Comparisons between Transects and between Loci.”https://doi.org/10.1111/j.1558-5646.1991.tb04400.x__Evolution. Wiley-Blackwell, 1991.https://doi.org/10.1111/j.1558-5646.1991.tb04400.x .

Barton, Nicholas H, and Shahin Rouhani. “The Probability of Fixation of a New Karyotype in a Continuous Population.”https://doi.org/10.1111/j.1558-5646.1991.tb04326.x__Evolution. Wiley-Blackwell, 1991.https://doi.org/10.1111/j.1558-5646.1991.tb04326.x .

Mallet, James, and Nicholas H Barton. “Strong Natural Selection in a Warning Color Hybrid Zone.”https://doi.org/10.2307/2409217 __Evolution. Wiley-Blackwell, 1989.https://doi.org/10.2307/2409217  .

Slatkin, Montgomery, and Nicholas H Barton. “A Comparison of Three Methods for Estimating Average Levels of Gene Flow.”https://doi.org/10.1111/j.1558-5646.1989.tb02587.x __Evolution; International Journal of Organic Evolution. Wiley-Blackwell, 1989.https://doi.org/10.1111/j.1558-5646.1989.tb02587.x  .

Szymura, Jacek, and Nicholas H Barton. “Genetic Analysis of a Hybrid Zone between the Fire-Bellied Toads Bombina Bombina and B. Variegata, near Cracow in Southern Poland.”https://doi.org/10.1111/j.1558-5646.1986.tb05740.x__Evolution; International Journal of Organic Evolution. Society for the Study of Evolution, 1986.https://doi.org/10.1111/j.1558-5646.1986.tb05740.x .

Barton, Nicholas H. “Multilocus Clines.”https://doi.org/10.2307/2408260__Evolution; International Journal of Organic Evolution. Society for the Study of Evolution, 1983.https://doi.org/10.2307/2408260 .

Barton, Nicholas H. “The Structure of the Hybrid Zone in Uroderma Bilobatum (Chiroptera: Phyllostomatidae).”https://doi.org/10.1111/j.1558-5646.1982.tb05452.x__Evolution. Wiley, 1982.https://doi.org/10.1111/j.1558-5646.1982.tb05452.x .

Barton, Nicholas H, and Godfrey Hewitt. “A Chromosomal Cline in the Grasshopper Podisma Pedestris.”https://doi.org/ 10.1111/j.1558-5646.1981.tb04966.x__Evolution; International Journal of Organic Evolution. Wiley-Blackwell, 1981.https://doi.org/ 10.1111/j.1558-5646.1981.tb04966.x .