1. Boerdijk, A. H., (1952). Philips, Res. Rept . 7, 303
2. A. R. Verma & P. Krishna, (1966). Polymorphism and Polytypism in Crystals . New York: Wiley. [Russian translation, (1969). Edited by A. S. Povarennykh, MIR: Moscow.]
3. Prager, P. R. (1974) Acta Cryst . A/textbf30 369.
4. Terhell, J. C. J. M. & Van der Vleuten, W. C. (1976). Mater. Res. Bull . 11, 101.
5. Azaroff, L. V. (1960). Introduction to Solids , McGraw-Hill.
6. (1962). International Tables for X-ray crystallography . Vol. III. Birmongham: Kynoch Press.
7. Belov, N. V. (1947). The Structure of Ionic Crystals and Metal Phases (in Russian) Izd. AN SSSR: Moscow.
8. Ramsdell, L. S. (1947). Am. Mineralogist 32, 64.
9. Hgg, G. (1943). Ark. Kem. Mineral. Geol . 163, 1.
10. Frank, F. C. (1951). Phil. Mag . 42, 1014.
11. Zhdanov, G. S. (1945). Compt. Rend. Acad. Sci. URSS 48, 43.
12. Pauling, L. (1945). Nature of the Chemical Bond , Cornell Univ. Press: Ithaca.
13. Wyckoff, R. W. G. (1948). Crystal Structures , Vol. I, New York: Interscience.
14. Jagodzinski, H. (1949). Acta Cryst . 2 201.
15. Pandey D. & Krishna, P. (1975). Mater. Sci. Eng . 20,243; (1976). Mater. Sci. Eng . 26, 53.
16. Jagodzinski, H. (1971) Kristallografiya , 16, 1235.
17. Krishna, P. & Marshall, R. C. (1971) J. Crystal Growth . 9, 319; (1971). J. Crystal Growth . 11 147.
18. Adamsky, R. F. & Merz, K. M. (1959). Z. Krist . 111 350.
19. Trigunayat, G. C. & Chadha, G. K. (1971). Phys. Stat. Sol. A , textbf4 1.
20. Krishna P. & Verma, A. R. (1963). Proc. Roy. Soc. (London), Ser A 272, 490.
21. Dubey, M., Singh G. & Van Tendeloo, G. (1977) Acta Cryst . A33, 276.
22. Ramsdell, L. S. & Kohn, J. A.(1951) Acta Cryst . 4, 111.
23. Krishna, P. & Verma, A. R. (1966) Physica Stat. Sol . 17, 437.
24. Shaffer, P. T. B. (1969) Acta Cryst . B25, 477.
25. Trigunayat, G. C. & Verma, A. R. (1976) Crystallography and Crystal Chemistry of Materials with Layered Structures , p. 269. D. Reidel Pub. Co.: Dordrecht-Holland.
26. Krishna, P. & Pandey, D. (1978) Advances in Crystallography Oxford and IBH: New Delhi.
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