1. Clinical and Electroencephalographical Classification of Epileptic Seizures
2. Gastaut H., and Broughton R., Epileptic Seizures, Charles C. Thomas Publishing Company, Springfield, Illinois, 1972, pp. 36, 37, 90, and 105.
3. Niedermeyer E., Compendium of the Epilepsies, Charles C. Thomas Publishing Company, Springfield, Illinois, 1974 p. 26.