1. Duff, A.W. (1896), Phys. Rev., 4, 23.
2. Winslow, W.M. (1947), “Methods and means for transmitting electrical impulses into mechanical force”, (U.S.Pat.), 25 Mar. 1947, No.2417850.
3. Winslow, W.M. (1949). “Induced fibration of suspensions”, J. Appl. Phys. 20:1137–1140.
4. Winslow, W.M. (1953), “Field controlled hydraulic device”, (U.S.Pat.), 8 Dec. 1953, No. 2661596.
5. Winslow, W.M.(1962), “Field response force transmitting compositions”, (U.S.Pat.), 1962, No. 3047507.