REFERENCES
- S. Raghava Iyengar and J. Shashidhara Prasad, Mol. Cryst. Liq. Cryst., 109, 179 (1984)
- S. Raghava Iyengar, J. Shashidhara Prasad and Shanta Venkataraman, Mol. Cryst. Liq. Cryst., 146, 265 (1987)
- S. Raghava Iyengar, J. Shashidhara Prasad and Shanta Venkataraman, (Communicated).
- J. Doucet, M. Lambert and A. M. Levelut, J. Phys. (Paris), 32, C5a-247 (1971)
- W. Helfrich and C. S. Oh, Mol. Cryst. Liq. Cryst., 14, 289 (1971)
- M. Leclercq, J. Billard and J. Jacques, Mol. Cryst. Liq. Cryst., 8, 367 (1969)
- H. Z. Urbach and J. Billard, Acad. Sci. (Paris), B 274, 1287 (1972)
- S. N. Aroneshidze, G. S. Chilaya, M. N. Kushnirenko and S. W. Osadchii, Mol. Cryst. Liq. Cryst. Letters 102, 187 (1984)
- T. Harada, M. Tagachi, K. lwasa, M. Kai, SID International Symposium, Digest of Tecknical Papers, Orlando, FL, USA (New York, USA), p. 131, (1985)
- S. Dumrongrattana, C. C. Huang and Astron, Phys. Rev. Lett. 56, 464 (1986)
- F. Ania and Stegemayer, Mol. Cryst. Liq. Cryst. Letters 2, 67 (1985)
- E. B. Sirota, P. S. Pershan, L. B. Sorensen and J. Colletl, Phys. Rev. Lett., 55, 2039 (1985)
- E. P. Raynes, R. J. A. Tough, Mol. Cryst. Liq. Cryst. Letters 2, 39 (1985)
- C. C. Huang, G. Nainesis, and D. Guilon, Phys. Rev., A 33, 2602 (1986)
- J. D. Brock, A. Aharony, R. J. Birgeman, K.W. Evans Lutterodt, J. D. Litster, P. M. Horn, G. B. Stephenson, A. R. Tajbakhsh, Phys. Rev. Lett., 57, 981 (1986)
- S. B. Dierker, R. Pindak and R. B. Meyer, Phys. Rev. Lett., 56, 1819 (1986)
- B. Yavoshy and A. Detlaf, ‘Hand Book of Physics’, (Moscow: Mir Publishers, 1980) p. 762.