R. P.]]A. F. Reed]]Clark.Advances in cryogenic engineering, materials(4th : 1981 : San Diego, Calif.)．V.28，Proceedings of the 4th International Cryogenic materials conference, San Diego, Calif. , 981.Plenum,1982.
Advances in cryogenic engineering, materials(4th : 1981 : San Diego, Calif.)．V.28，Proceedings of the 4th International Cryogenic materials conference, San Diego, Calif. , 981
R. P. Reed,A. F. Clark,International Cryogenic Materials Conference.Advances in cryogenic engineering, materials．V.28：International Cryogenic Materials Conference (4th : 1981 : San Diego, Calif.).Plenum,1982.
