1. Hall, H. T. Rev. Sci. Instrum. 1958, 29, 267.
2. Houck, J. C. and Hutton, U. O. High Pressure Measurement, p. 221. Eds. A. A. Giardini and E. G. Lloyd. Butterworths, London, 1963.
3. Vereshchagin, L. F. Progress in Very High Pressure Research. Eds. F. P. Bundy, W. R. Hibbard and H. M. Strong. Wiley, New York, 1960.
4. Lees, J. Advances in High Pressure Research, vol. 1, p. 1, Ed. R. S. Bradley. Academic Press, New York, 1966.
5. Lloyd, E. C., Hutton, U. O. and Johnson, D. P. J. Res. Nat. Bur. Stand. 1959, 63c, 59.