1. Die primaren Geschwiilste des Sehnerven;BRAUNSCHWEIG, P.;Arch. f. Ophthal,1893
2. Diseases of the Optic Nerve. Two Cases of Primary Neoplasm of the Optic;COLLINS, E.T.; MARSHALL, C.D.;Trans. O hthai. Soc. U. K,1900
3. Prechiasmal intracranial Tumours of the Optic nerve;DANDY, W.E.,1922
4. Tumours of the Optic Nerve and its Sheaths;DUKE-ELDER, S.;Text-Book of Ophthalmology,1940
5. Der Sehnerve, Nervus opticus;EILLER, P.;Kurzes Handbuch der Ophthal,1930