1. D. B. Brown and J. V. Gilfrich, J. Appl. Phys. 42, 4044 (1971).
2. H. P. Klug and L. E. Alexander, X-Ray Diffraction Procedures, John Wiley & Sons, New York & London, 3rd Printing, pp. 167–168, 1962.
3. H. K. Herglotz, Rev. Sci. Instr. 34, 708 (1963).
4. H. K. Herglotz, Rev. Sci. Instr. 39, 1658 (1968).