1. N. Bloembergen, Nonlinear Optics, 4th edn. (World Scientific Publishing Co. Pte, Ltd, 1996)
2. D.C. Hanna, M.A. Yuratich, D. Cotter, Nonlinear Optics of Free Atoms and Molecules (Springer, Berlin, 1979)
3. J.F. Reintjes, Nonlinear Optical Parametric Processes in Liquids and Gases (Academic, Orlando, 1984)
4. G.P. Agrawal, R.W. Boyd, Contemporary Nonlinear Optics (Academic Press Inc, San Diego, 1992)
5. R.W. Boyd, Nonlinear Optics, 3rd edn. (Academic Press Inc, Amsterdam, 2008)