1. In "The Cornea World Congress: Papers presented at the First World Congress on the Cornea;ANDERSON, B.; ROBERTS, JR., S.S.; GONZALES, c; CHICK, E.W.;Arch. Ophihal,1959
2. Amer;Butterworths, London K.A.U.F.M.A.N.; E., H.; WOOD, R.M.;J. Ophthal; Corneal Transplantation,1965