REFERENCES
- P. VERNIA: Machinery (Lond), 18 July, 1973.
- T. NAKAGAWA: private communication, 1976.
- J. M. ALEXANDER and B. LENGYEL: Proc. 16th Int. MTDR Conf., 1975, p. 291.
- G. G TEH: BSc Final Year Project Report, Imperial College, 1976.
- S. H. SONG: BSc Final Year Project Report, Imperial College, 1975.
- C. L. TAN: BSc Final Year Project Report, Imperial College, 1976.
- R. A. C. SLATER, W. JOHNSON, and E. N. LAITHWAITE: Proc. Inst. Mech. Eng., 1964-65, 179, (1), 15.