„Characterization of melanins in human irides and cultured uveal melanocytes from eyes of different colors”. Exp. Eye Res. 67 (3): 293—9. 1998. PMID9778410. doi:10.1006/exer.1998.0518.
Leibowitz H. M (2000). „The red eye”. New England Journal of Medicine. 343 (5): 345—351. doi:10.1056/NEJM200008033430507.
„Characterization of melanins in human irides and cultured uveal melanocytes from eyes of different colors”. Exp. Eye Res. 67 (3): 293—9. 1998. PMID9778410. doi:10.1006/exer.1998.0518.