1. R. Hanzell: Met. Progr., 1954, vol. 65, p. 89.
2. R.A. Rowntree: 2nd Eur. Space Mechanisms and Tribology Symp., Conf. Proc, J.L. Murray, Ed., Meersburg, 1985, pp. 167–71.
3. E. Mitchell and P. Brotheron: J. Inst. Met., 1964–1965, vol. 93, p. 381.
4. H.J. Brading: Ph.D. Thesis, University of Birmingham, Birmingham, 1992.
5. M. Miyagi, Y. Sato, T. Mizuno, and S. Sawada: Titanium ’80, 4th Int. Conf. on Titanium, Conf. Proc., TMS-AIME, Warrendale, PA, 1980, vol. 4, p. 2867.