1. Gibbs, E. L., Gibbs, F. A., and Fuster, B. (1948). Arch. Neurol.
2. A Manual of Diseases of the Nervous System;Gowers, W.R.,1892
3. Hill, D. (1952). Electroenceph. clin. Neurophysiol., 4, 419.
4. Selected Writings of John Hughlings Jackson;Jackson, J.H.,1931
5. Vol. 1, p. 460. Hodder and Stoughton, London.