1. Treatment of diabetic retinopathy by light coagulation;Wetzig;Brit. J. Ophth.,1963
2. Light Coagulation (Translated by Drance);Meyer-Schwickerath,1960
3. Meyer-Schwickerath, G.: Personal communication.
4. Visual prognosis of proliferating diabetic retinopathy;Beethan;Brit. T. Ophth.,1963
5. Ungewohnliche Remissionen bei Retinitis Diabetica Proliferans;Fisher;Arch. f. Ophth.,1961