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2. “Technical Applications of Superconductivity and its Future Prospects”;Jüngst;KfK-Nachrichten,1988
3. Lehmann, W., Zahn, G. private communication.
4. Nyilas, A., Obst, B. “Tensile and Fracture Properties of High Nitrogen Bearing Austenitic Steels at Cryogenic Temperatures”. Presented at HNS 88, Lille, France (1988).
5. “Materials for superconducting magnets”;Komarek;J. of Nucl. Mat.,1988