References
- Chandrasekhar , S. , Sadashiva , B. K. and Suresh , K. A. 1977 . Pramana , 9 : 471
- Frost , J. 1981 . “ Comptes Rendus Du Colloque Pierre Curie: Symmetries and Broken Symmetries ” . Edited by: Boccara , N. Paris : Inst. Dev. Sci., Educ. Technol. .
- Levelut , A. M. , Oswald , P. , Ghanem , A. and Malthete , J. 1984 . J. Phys., Paris , 44 : 745
- Bock , H. and Helfrich , W. 1992 . Liq. Crystals , 12 : 697
- Frank , F. C. and Chandrasekhar , S. 1980 . J. Phys., Paris , 41 : 1285
- Destrade , C. , Bernaud , M. C. , Gasparoux , H. , Levelut , A. M. and Tinh , Nguyen Huu . Proceedings of the International Liquid Crystal Conference . Bangalore. Edited by: Chandrasekar , S. pp. 29
- Malthete , J. , Jacques , J. , Tinh , Nguyen Huu and Destrade , C. 1982 . Nature, Lond. , 298 : 46