1. Ruby laser photocoagulation in treatment of diabetic proliferative retinopathy; preliminary report;Aiello, L.; Beetham, W.; Marios, C.B.; Chazen, B.I.; Bradley, R.F.,1968
2. Response of proliferative diabetic retinopathy to xenon-arc phtocoagulation. A multicentre randomised controlled trial: second interim report;Cheng, H.,1976
3. Transactions of the Ophthalmological Societies of the United;American Journal of Ophthalmology,;Kingdom; Preliminary report on effects of photocoagulation therapy,1976
4. Retinal photocoagulation (xenon-arc and lasers);Franqois, J.; Cambie, E.;Annals of Ophthalmology,1971
5. Hamilton, A. M., Townshed, C.. Khoury, D., and Gould, E. (1976). Transactions of the Ophthalmological Societies of the United Kingdom, 96, 228-235.