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Prota G, Hu DN, Vincensi MR, McCormick SA, Napolitano A. "Characterization of melanins in human irides and cultured uveal melanocytes from eyes of different colors". Exp. Eye Res. 67 (3). 1998: 293–9. doi:10.1006/exer.1998.0518. PMID9778410.
White, Désirée; Rabago-Smith, Montserrat. "Genotype–phenotype associations and human eye color". Journal of Human Genetics. 56 (1). 14 October 2010: 5–7. doi:10.1038/jhg.2010.126. PMID20944644.