1. C. Bosshard , R.Spreiter, U.Meier, I.Liakatas, M.Bösch, M.Jäger, S.Manetta, S.Follonier and P.Günter, in Crystal Engineering: From Molecules and Crystals to Materials, ed. D. Braga, F. Grepioni and A. G. Orpen, Kluwer Academic, Dordrecht, 1999, pp. 261–278
2. C. Bosshard , K.Sutter, P.Prêtre, J.Hulliger, M.Flörsheimer, P.Kaatz and P.Günter, Organic Nonlinear Optical Materials, Gordon and Breach, Basel, 1995
3. J. Zyss , Molecular nonlinear optics. Materials, physics and devices, Academic Press, New York, 1994
4. J. Zyss and D. S.Chemla, in Nonlinear optical properties of organic molecules and crystals, ed. D. S. Chemla and J. Zyss, Academic Press, London, 1987, vol. 1, pp. 23–191
5. Second-order nonlinear optical materials: recent advances in chromophore design