1. Experience with keratoprostheses;Bertelsen;Acta ophthal. (Kbh.) Suppl.,1973
2. Keratoprosthesis: Acrylic optical cylinder with supporting interlamellar plate;Cardona;Amer. J. Ophthal.,1962
3. Mushroom transcorneal keratoprosthesis (Bolt and nut);Cardona;Amer. J. Ophthal.,1969
4. Perforating keratoprosthesis. The Choyce MK II (1967) 2-piece perforating keratoprosthesis;Choyce;Trans. ophthal. Soc. U. K.,1970
5. Prosthetosclerokeratoplasty - Implantation of a keratoprosthesis using full-thickness onlay sclera and sliding conjunctival flap;Girard;Trans. amer. Acad. Ophthal. Otolaryng.,1969