1. Age changes in pupil size;Birren;J. Geront.,1950
2. U¨ber Methoden logitudinaler Alternforschungam Auge;Bru¨ckner;Ophthalmologica, Basel,1959
3. An introduction to Clinical Orbitometry;Copper,1948
4. The Ocular Adnexa;Duke Elder,1952
5. The variations in the peripheral visual fields with age;Fisher;Documenta ophthal,1967