1. G. Gamota, IEEE Trans. Magn. MAG-17: 19 (1981).
2. P. Kapitza, Proc. R. Soc. 147A; 189 (1934).
3. H. Weinstock, Chapter 1 in: “Applications of Cryogenic Technology,” R. W. Vance and H. Weinstock, eds., Tinnon- Brown, Los Angeles (1969).
4. F. R. Fickett, in: “Proceedings, Fifth International Conference on Magnet Technology,” N. Sacchetti, M. Spadoni, and S. Stipcich, eds., Laboratori Nazionali del CNEN, Frascati, Italy (1975), p. 659.
5. F. R. Fickett, in: “Proceedings Sixth International Cryogenic Engineering Conference,” IPC Business Press, Sussex, England (1977), p. 20.