1. Adie, W. J., Trans. ophthalm. Soc. U. Kingd.50, 262 (1930). Ref. Zbl. Ophthalm.25, 567 (1931).
2. Ayer, J. B., u. H. E. Foster, Arch. of Neur.8, 31 (1922).
3. Behr, C., Münch. med. Wschr.1924, 633.
4. Berlin, C., Dtsch. Arch. klin. Med.14, 103 (1874).
5. Bing, R., Schweiz. med. Wschr.1932, 1069.