1. Vitreous surgery for macular pucker;Michels, R.G.;Am J Ophthalmol,1981
2. Idiopathic nonvascularized cpiretinal membranes in young patients: report of six cases;Barr CC, Michels RG;Ann Ophthalmol,1982
3. Die chirurgische Entfernung von epiretinalen Makula-Membranen (macular puckers);Machemer, R.;Klin Monastbl Augenheilkd,1978
4. Vitreous microsurgery;Charles, S.,1981
5. Vitreous surgery;Michels, R.G.,1981