1. J. Jackson: Classical Electrodynamics (Wiley, New York 1975)
2. L.D. Landau, E.M. Lifshitz: The Classical Theory of Fields (Addison Wesley, New York 1971)
3. C. Kittel: Introduction to Solid State Physics (Oldenbourg, Munich 1988)
4. H. Haken: Quantum Field Theory of Solids (Teubner, Stuttgart 1973)
5. A. Sommerfeld: Optics: Lectures on Theoretical Physics, Vol. IV (Academic Press, New York 1954)