1. Acta ophthal;ASK, 0;(Kbh.),1934
2. Annual Scientific Session;CADE, S.,1956
3. CORDES, F. C. (I 944) Amer. J. Ophthal., 27, 1355 DICKSON, R. J. (1958) Ibid., 46, I4
4. System of Ophthalmology;DUKE-ELDER, S.,1966
5. In "Ocular and Adnexal Tumors";HOGAN, M.j,1964