1. L. C. McDonald and K. T. Hartwig, Creep of Pure Aluminum at Cryogenic Temperatures, Adv. in Cryogenic Engr. Mat. 36:1135 (1990).
2. R. P. Reed, N. J. Simon, and R.P. Walsh, Creep of Copper: 4 to 295 K, Adv. in Cryogenic Engr. Mat. 36:1175 (1990).
3. L. C. McDonald and K. T. Hartwig, Cryogenic Creep Testing, J. Testing and Evaluation Vol 19, No. 3, March 1991.
4. C. Yen, T. Caulfield, L. D. Roth, J. M. Wells, and J. K. Tien, Creep of Copper at Cryogenic Temperatures, J. Cryogenics 24: 381 (1984).
5. C. T. Yen, L. D. Roth, J. M. Wells, and J. K. Tien, Equipment for Long-term Creep Testing at Cryogenic Temperatures, J. Cryogenics 24:410 (1984).