1. Arch;ABRAMOWICZ, I.;Ann. Oculist. (Paris), 95; Biomicroscopy of the Eye,1933
2. Klin;BISCHLER, V.;Mbl. Augenheilk,1939
3. BUCKLERS, M. (1939) Ibid., 103, 4I3
4. Surv;COWAN, T.H.;Ophthal; System of Ophthalmology,1961
5. Studies on Human Ocular Pigment;Kimpton, London F.E.E.N.E.Y.; L., G.R.I.E.S.H.A.B.E.R.; j.; HOGAN, M.J.,1965