1. W. G. Oldham and S. E. Schwarz, Electrical Engineering,Holt, Rinehart, and Winston, New York (1984), Section 11–2.
2. J. Millman and C. C. Halkias, Integrated Electronics, McGraw-Hill, New York (1972), Chapter 4.
3. See, for example, C. Kittel, Introduction to Solid State Physics, Third Edition, John Wiley, New York (1966), page 323.
4. See References 38–40 of Chapter 2.
5. See References 26 and 27 of Chapter 2.