1. Ueber Siderosis Bulbi and Die Beziehinger Zurschev Siderotischer and Hamatogener Pigmentierung;Von Hippel;Arch. f. Ophth.,1894
2. Ocular effects of systemic siderosis;Cibis;Am. J. Ophth.,1957
3. Duke-Elder, W. S.: Textbook of Ophthalmology. St. Louis, 1940.
4. Clinical aspects of ocular siderosis and hemosiderosis;Cibis;AMA Arch. Ophth.,1959