1. B.A. Jost and H.E. Goebel, in “Advances in X-Ray Analysis, Vol. 25,” Russ, Barrett, Predecki and Leyden, Plenum Publishing Corp., New York (1982).
2. G.J. McCarthy, Powder Diffraction, 1:50 (1986).
3. G.G. Johnson Jr., and V. Vand, Ind. Eng. Chem., 59:19 (1967)
4. k.L. Bobrowski, in “Proceedings of the 8th International Conference on Pattern Recognition,” IEEE, Paris (1986).