1. C. Kittel, Introduction to Solid-State Physics, John Wiley and Sons, New York, 1968.
2. W. Shockley, Electrons and Holes in Semiconductors, D. Van Nostrand Company, 1950
3. R. B. Adler, A. C. Smith and R. L. Longini, Introduction to Semiconductor Physics, Semiconductor Electronics Education Committee, Vol. 1, J. Wiley & Sons, 1964.
4. W. Finkelburg, Einfuehrung in die Atomphysik, Springer Verlag, 1958.
5. J. L. Moll, Physics of Semiconductors, McGraw-Hill, 1964.