1. J. ZYSS, in “Nonlinear Optics: Materials, Physics and Devices” (Academic Press, Boston, 1993).
2. H. S. NALWA and S. MIYATA, “Nonlinear optics of organic molecules and polymers” (CRC Press, Boca Raton, FL, 1997).
3. N. B. MCKEOWN, in “Phthalocyanine Materials: Synthesis, Structure and Function,” edited by B. Dunn, J. W. Goodby and A. R. West (Cambridge University Press, 1998).
4. H. S. NALWA and J. S. SHIRK, in “Phthalocyanines: Properties and Applications,” edited by C. C. Leznoff and A. B. P. Lever (VCH Publishers, Inc., New York, 1996) Vol. 4, p. 79.
5. M. J. STILLMAN and T. NYOKONG, in “Phthalocyanines: Properties and Applications,” edited by C. C. Leznoff and A. B. P. Lever (VCH Publishers, Inc., New York, 1989) Vol. 1, p. 133.