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2. Muscle spindle activity in alternating tremor of Parkinsonism and in clonus;Hagbarth, K.E.; Wallin, G.; Lofstedt, L.; Aquilonius, S.M.;J Neurol Neurosurg Psychiatry,1975
3. Physiological clonus in man;Gottlieb, G.L.; Agarwal, G.C.;Exp'Neurol,1977
4. Eine elektromyographische Untersuchung bei Spastik und Rigor;Struppler, A.; Schulte, F.J.; Scheininger, R.; Kukku, M.;Deutsch Z Nervenheilk
5. Observations on the reflex response to muscle vibration and its voluntary control;Marsden, C.D.; Meadows, J.D.; Hodgson, H.J.;Brain