1. C.J. Russo: Yarian Semiconductor Equipment Operations Report No. 16, also Ionics (to be published)
2. S.M. Sze: Physics of Semiconductor Devices, 2nd ed. pl9 (Wiley, New York, 19811
3. A. Bhattacharyya, B.G. Streetman: Solid State Communications 36, 71 (1980)
4. V. Fistul’ Heavily Doped Semiconductors, Chapter 4.1 ( Plenum Press, New York, 1969 )
5. C. Kittel: “Introduction To Solid State Physics”, 3rd ed., p. 305 ( Wiley, New York, 1966 )