Woodson, Herbert H.; Melcher, James R. (1968). Electromechanical Dynamics(PDF) (1 ed.). New York: Wiley. pp. 251–329. Archived from the original(PDF) on 2022-12-20. Retrieved 2022-08-21.
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Woodson, Herbert H.; Melcher, James R. (1968). Electromechanical Dynamics(PDF) (1 ed.). New York: Wiley. pp. 251–329. Archived from the original(PDF) on 2022-12-20. Retrieved 2022-08-21.