N. H. Barton, “The width of the hybrid zone in Caledia captiva,” Heredity, vol. 47. Nature Publishing Group, pp. 279–282, 1981.

N. H. Barton and G. Hewitt, “The genetic basis of hybrid inviability between two chromosomal races of the grasshopper Podisma pedestris,” Heredity, vol. 47, no. 3. Springer Nature, pp. 367–383, 1981.

N. H. Barton, “The hybrid sink effect,” Heredity, vol. 44. Springer Nature, pp. 277–278, 1980.

N. H. Barton, “The fitness of hybrids between two chromosomal races of the grasshopper Podisma pedestris,” Heredity, vol. 45. Springer Nature, pp. 47–59, 1980.

N. H. Barton, “Gene flow past a cline,” Heredity, vol. 43, no. 3. Springer Nature, pp. 333–339, 1979.

N. H. Barton, “The dynamics of hybrid zones,” Heredity, vol. 43, no. 3. Springer Nature, pp. 341–359, 1979.