Barton, Nicholas H. “Pleiotropic Models of Quantitative Variation.”10.1093/genetics/124.3.773 __Genetics, vol. 124, no. 3, Genetics Society of America, 1990, pp. 773–82, doi:10.1093/genetics/124.3.773 .
LibreCat: https://research-explorer.ista.ac.at/record/3651
DOI: 10.1093/genetics/124.3.773 
PMID: 2311921

Mallet, James, and Nicholas H. Barton. “Inference from Clines Stabilized by Frequency-Dependent Selection.”10.1093/genetics/122.4.967__Genetics, vol. 122, no. 4, Genetics Society of America, 1989, pp. 967–76, doi:10.1093/genetics/122.4.967.
LibreCat: https://research-explorer.ista.ac.at/record/3652
DOI: 10.1093/genetics/122.4.967
PMID: 2759433