1. 1) B. E. Warren: X-Ray Diffraction, Addison-Wesley, Reading, (1969).
2. 2) H. P. Klug and L. E. Alexander: X-ray Diffraction Procedure for Polycrystalline and Amorphous Materials, 2nd ed., Wiley, New York, (1968).
3. 3) e.g., E. Burkel, J. Peisl and B. Dorner: Europhys. Lett., 3 (1987), 957.
4. 4) S. Nanao, W. Dmowski, T. Egami, J. W. Richardson, Jr. and J. D. Jorgensen: Phys. Rev., B35 (1987), 435.
5. 5) J. P. Hansen and I. R. McDonald: Theory of Simple Liquids, Academic Press, London, (1976).