1. A peculiar glioma (neuroepithelioma?) of the retina;Flexner;Bull. Johns Hopkins Hosp.,1891
2. Das Neuroepithelioma Retinae. Eine Anatomische und Klinische studie;Wintersteiner,1897
3. A note on the rosettes, nature and nomenclature of “glioma retinae.”;Wolff;Brit. J. Ophth.,1944
4. Pathology of Tumors;Willis,1948