1. A. M. SAGE: 'X70 vanadium steel', Publication V035; 1975, London, Vanitec.
2. J. D. BAIRD and R. R. PRESTON: Trans, Conf. Processing and Properties of Low Carbon Steels, Cleveland, 1972, AIME.
3. W. B. MORRISON, B. MINTY, and R. C. COCHRANE: 'Structure property relationship in controlled processed steel', BSC conference, York, Sep-tember 1976.
4. w. W. WIEDENHOFF, P. A. PETERS, W.B. KRETZScHMANN, and W. M. HOP: 'Development and manufacture of ferritic—pearlitic niobium—vanadium steel for large diameter pipelines from thermo-mechanically treated plates', Proceedings of Vanitec High Strength Steel Seminar, Chicago, 1979.