1. S. L. Wipf, Los Alamos Scientific Laboratory Report LA 72–75, 1978.
2. G. Paztor and C. Schmidt, J. Appl. Phys. 49 886 (1978).
3. M.N. Wilson, SUPERCONDUCTING MAGNETS (to be published by Oxford University Press).
4. C. A. Scott (to be published).
5. P. F. Smith, M. N. Wilson, and A. H. Spurway, J. Phys. D 3, 1561 (1970).