1. Autenrieth undFunk, Münch. med. Wochenschr. 1913, Nr. 23.
2. Ayala, G., undDom. Pisani, Riv. sperim. di freniatr., arch. ital. per le malatt. nerv. e ment.50, H. 1/2. 1926.
3. Bender, L., Americ. journ. of pathol.1, Nr. 6. 1925.
4. Betchov, N., Journ. de physiol. et de pathol. gén.21, Nr. 2. 1923.
5. Bloor, Journ. of biol. chem. 1916/1917.