1. H. Meissner,Phys. Rev. 117, 672 (1960); P. Hilsch,Z. Phys. 167, 511 (1962); J. J. Hauser, H. C. Theurer, and N. R. Werthamer,Phys. Rev. 136A, 637 (1964).
2. Orsay Group on Superconductivity, in Quantum Fluids, D. F. Brewer, ed. (North-Holland, Amsterdam, 1966);Phys. Kond. Materie 6, 307 (1967); P. G. de Gennes and J. P. Hurault,Phys. Lett. 17, 181 (1965); G. Deutscher and P. G. de Gennes, inSuperconductivity, R. D. Parks, ed. (Marcel Dekker, New York, 1969), Vol. 2, p. 1005.
3. Y. Oda and H. Nagano,J. Phys. Soc. Japan 44, 2007 (1978);Solid State Commun. 35, 631 (1980); Y. Oda, G. Fujii, and H. Nagano,Japan. J. Appl. Phys. 21, L37 (1982); Y. Oda, H. Sumiyama, and H. Nagano,Japan. J. Appl. Phys. 22, 464 (1983).
4. A. Sumiyama, Y. Oda, and H. Nagano,J. Phys. Soc. Japan 53, 2449, (1984); inProceedings 17th International Conference on Low Temperature Physics, U. Eckern, A. Schmid, W. Weber, and H. W�hl, eds. (North-Holland, Amsterdam, 1984), Vol. II, p. 1025.
5. A. C. Mota, D. Marek, and J. C. Weber,Helv. Phys. Acta 55, 647 (1982); J. C. Weber, A. C. Mota, and D. Marek, inProceedings 17th International Conference on Low Temperature Physics, U. Eckern, A. Schmid, W. Weber, and H. W�hl, eds. (North-Holland, Amsterdam, 1984), Vol. II, p. 1023.