1. Textbook of Ophthalmology, Vol VI: Injuries, Retained Foreign Bodies.;Duke-Elder,1954
2. New permanent hand magnet in the light of present day magnets—operation methods.;Brodsky;Am J Ophthalmol,1945
3. Concerning magnetic intraocular foreign bodies and their removal.;Verhoeff;Am J Ophthalmol,1932
4. Magnet of nickel-aluminum steel for extraction of foreign bodies from the eye.;Kalfa;Rep Ukraine Inst Exp Ophth Odessa,1939
5. The. “Firle” eye magnet.;Harman;Br J Ophthalmol,1939