1. H. J. C. Speidel and M. O. Speidel, Mater. Manufact. Proc., 19, 95 (2004).
2. M. O. Speidel, Mater. Manufact. Proc., 94, 119 (2003).
3. M. O. Speidel and M. L. Zheng, in: HNS 2003 High Nitrogen Steels, vdf Hochschulverlag ETH, Zurich, Switzerland (2003), pp. 63–73.
4. H. J. C. Spiedel and M. O. Speidel, HNS 2003 High Nitrogen Steels, vdf Hochschulverlag ETH, Zurich, Switzerland (2003)Ibid., pp. 101–112.
5. M. O. Speidel, “Ultra high strength austenitic stainless steels,” in: Stainless Steel World Conf. 2001, The Hague, The Netherlands, November (2001).