1. Zeki, S. M. Brain Res. 53, 422–427 (1973).
2. Verrey, Archs Ophthalmol., Paris 8, 289–300 (1888).
3. MacKay, C. & Dunlop, J. C. Scottish med. Surg. J. 5, 503–512 (1899).
4. Hensohen, S. C. in Handbuch der Neurologie, 2 (ed. Lewandowsky, M.) 891–918. (Springer, Berlin, 1910).
5. von Monakow, C. Gehirnpathologie Vol. IV (Hölder, Vienna, 1905).