1. B. E. Warren, “X-ray Diffraction,” London: Addison Wesley, Chapter 13 (1969).
2. W. H. Hall, Proc. Phys. Soc. A62: 741 (1949).
3. R. Delhez, Th. H. deKeijser, and E. J. Mittermeijer, in Accuracy in Powder Diffraction, S. Block and C. R. Hubbard, eds., NBS Special Publication 567, p. 213 (1980).
4. D. Taupin, J. Appl. Cryst. 6:266 (1973).
5. W. Parrish, T. C. Huang, and G. L. Ayers, Trans. Am. Crystallogr. Assoc. 12:65 (1976).