1. C. Kittel: Introduction to Solid State Physics, 6th edn. (Wiley, New York 1986)
2. C. Kittel: Quantum Theory of Solids, 2nd edn. (Wiley, New York 1987)
3. K. Seeger: Semiconductor Physics (Springer, New York 1982)
4. T. S. Moss: Optical Properties of Semiconductors (Butterworths, London 1959)
5. S. M. Sze: Physics of Semiconductor Devices (Wiley, New York 1981)