1. R. Ogawa and J. W. Morris, Jr., Proc. of the International Cryogenic Materials Conf., Kobe, Japan, 1982, p. 124.
2. D. T. Reed and R. P. Reed, Materials Studies for Magnetic Fusion Energy applications at Low temperatures-II NBSIR79–1609. National Bureau of Standards, Boulder, COLO, 1979, p. 81.
3. R. L. Tobler, D. T. Reed and R. P. Reed, Materials Studies for Magnetic Fusion Energy Applications at Low Temperatures-IV NBSIR81–1645, National Bureau of Standards, COLO, 1981, p. 37.
4. A. Soto, K. Soma and T. Mori, Acta Metall. 30: 10: 1901 (1983)
5. S. Jin, S. K. Hwang and J. W. Morris, Jr., Met. Trans. A, 6A, 1721 (1975).