1. Claverie, P. 1978. “Intermolecular interactions: from diatomic to biopolymers”. Edited by: Pullman, B. N.Y.: John Wiley.
2. The crystal structure of p-azoxyanisole
3. Misra, R. K. and Tyagi, S. R. 1973.Liquid crystal and ordered fluids, Edited by: Johnson, J. F. and Porter, R. S. 59N.Y.: Plenum press. Chap. 2