1. Molecular Nonlinear Optics: Materials, Physics and Devices, ed. J. Zyss, Academic Press, Boston, 1994
2. Nonlinear Optics of Organic Molecules and Polymers, ed. H. S. Nalwa and S. Miyata, CRC Press,Boca Raton, FL, 1996
3. B. J. Coe , in Comprehensive Coordination Chemistry II, ed. J. A. McCleverty and T. J. Meyer, Elsevier Pergamon, Oxford, UK, 2004, vol. 9, p. 621
4. Second-order nonlinear optical materials: recent advances in chromophore design
5. Mono- and dinuclear sesquifulvalene complexes, organometallic materials with large nonlinear optical properties