1. BUCKLERS, M. (1938). Klin. Mbl. Augenheilk., 101, Suppl. No. 3.
2. Quoted by Franceschetti and others;BUSACCA, A.,1950
3. DEMPSEY, E. W., BUNTING, H., SINGER, M., and WISLOCKI, G. B. (1947). Anat. Rec., 98, 417.
4. Les heredodystrophies familiales de la cornee.;ETIENNE, R.,1949
5. FRANCESCHETTI, A. (1928). Z. Augenheilk., 66, 309.