1. Benson WE (1983) Intraocular foreign bodies. In: Duane TD, ed. Clinical Ophthalmology vol. 5, chapter 15, 1?15.
2. Blaskovics-Kettesy (1970) Eingriffe am Auge. Stuttgart: Enke Verlag.
3. Bronson NR (1968) Practical characteristics of ophthalmic magnets. Arch Ophthalmol 79: 22?27.
4. Brunette JR, Wagdi S, Lafond G (1980) Electroretinographic alteration in retinal metallosis. Can J Ophthalmol 15: 176?178.
5. Duke-Elder S (1972) The removal of intra-ocular foreign bodies. System of Ophthalmology Vol 14, 616?636.