1. Adrian ED & Bronk DW (1929). The discharge of impulses in motor nerve fibres. Journal of Physiology (London)
67, 119–151.
2. Althaus J (1873). Theoretical and practical paralysis, neuralgia and other diseases In: A Treatise on Medical Electricity, 3rd Ed. London: Longmans, Green, and Co.
3. Bainbridge FA (1931). The Physiology of Muscular Exercise, p. 235. London: Longmans, Green & Co.
4. Belanger AY & McComas J (1981). Extent of motor unit activation during effort. Journal of Applied Physiology
51, 1131–1135.
5. Bergström J (1962). Muscle electrolytes in man. Scandinavian Journal of Clinical Laboratory Investigation
14 (suppl 68), 9–88.