1. Untersuchungen uber die refraktare Periode des menschlichen Ruckenmarkes;Hoffman, P.;Z Biologie,1924
2. Methodology of the Hoffmann reflex in man. New Dev Electromyog Clin Neurophysiol;Hugon, M.,1973
3. Electrophysiological studies of reflex activity in patients with lesions of the nervous system: I. A comparison of spinal motoneurone excitability following afferent nerve volleys in normal persons and patients with upper motor neurone lesions;Magladery, J.W.; Teasdall, R.D.; Park, A.M.; Languth, H.W.;Bulletin of the Johns Hopkins Hospital,1952
4. The H-reflex in normal, spastic, and rigid subjects;Angel, R.W.; Hoffman, W.W.;Arch Neurol,1963
5. Ratio of maximum H-reflex to maximum M response as a measure of spasticity;Matthews, W.B.;J Neurol Neurosurg Psychiatry,1966