1. Primary tumours of the iris;Ashton, N.;British Journal of Ophthalmology,1964
2. Malignant melanoma of the iris;Cleasby, G.W.;Archives of Ophthalmology,1958
3. Ophthalmic Pathology, An Atlas and Textbook;Hogan, M.J.; Zimmerman, L.E.,1962
4. Jarrett, W. H., Goldberg, M. J., and Schulze, R. R. (1966).
5. Tapioca melanoma of the iris, part 1. Clinical and light microscopic studies;Reese, A.B.; Mund, M.L.; Iwamato, T.;American Journal of Ophthalmology,1972