Tabes DorsalisNeurology, Charles C. Thomas, Publ, 6th Ed, p. 1082, Grinker,R.R.&Sahs,A.L., 1966
Sensory Irritative PhenomenaBing's Local Diagnosis in Neurological Diseases, C. V. Mosby, Co, St. Louis, 5th Ed, p. 80, Haymaker,W., 1969