1. R. W. Boom, “Wisconsin Superconductive Energy storage Project,” Vol. 1, University of Wisconsin, Madison, Wisconsin (1974).
2. R. W. Boom, G. E. McIntosh, H. A. Peterson, and W. C. Young, in Advances in Cryogenic Engineering, Vol. 19, Plenum Press, New York (1974), p. 117.
3. R. W. Boom, “Wisconsin Superconductive Energy Storage Project,” Vol. 2, University of Wisconsin, Madison, Wisconsin (1976).
4. University of Wisconsin Nuclear Engineering Department Report FDM-112, Madison, Wisconsin (1975).
5. University of Wisconsin Nuclear Engineering Department Report FDM-150, Madison, Wisconsin (1976).