1. Beckermann, B. L.: Intraocular foreign body extraction in early chalcosis. Arch. Ophthal. 87, 443–445 (1972).
2. Cordes,F. C., Harrington, D. O.: Bilateral absorption of intraocular copper with chalcosis in one eye. Amer. J. Ophthal. 18, 348–352 (1935).
3. Crawford, B.: Peripatetic intraocular foreign body. Arch. Ophthal. 64, 192–195 (1960).
4. Goldsmith, M. O.: Intraocular foreign body, siderosis bulbi and phacoanaphylactic endophthalmitis. Amer. J. Ophthal. Ser. 3, 54, 385–393 (1962).
5. Goldsmith, M. O.: Survey of intraocular foreign body literature with special reference to spontaneous migration and extrusion. J. Int. Coll. Surg. 43, 630–640 (1965).