1. P.N. Prasad, D.J. Williams (eds.), Introduction to Nonlinear Optical Effects in Molecules and Polymers (Willey, New York, 1991)
2. J. Zyss (ed.), Molecular Nonlinear Optics, Materials, Physics and Devices (Acadmic Press, Boston, 1994)
3. H.S. Nalwa, S. Miyata (eds.), Nonlinear Optics of Organic Molecules and Polymers (CRC Press, Boca Raton, 1997)
4. D.S. Chemla, J. Zeiis, Nonlinear Optical Properties of Organic Molecules and Crystals (Academic, New York, 1987)
5. M. Sylla, D. Manaila-Maximean, A.M. Albu, J. Delaunay, Polymer 41, 3507 (2000)