1. Y. P. Tsividis,Operation and Modelling of the MOS Transistor, McGraw-Hill, 1987.
2. C. C. Enz, ?High precision CMOS micropower amplifiers,? Ph.D. thesis, No. 802, EPFL, Lausanne, 1989.
3. E. A. Vittoz, ?Micropower techniques,? inDesign of MOS VLSI Circuits for Telecommunications, edited by J. Franca and Y. Tsividis, Prentice-Hall, 1993.
4. E. A. Vittoz, ?MOS transistor,? Intensive Summer Course on CMOS & BiCMOS VLSI Design, Analog&Digital, Lausanne (EPFL), Switzerland, September 1993.
5. J. A. van Nielen and O. W. Memelink, ?Influence of substrate upon the DC characteristics of MOS transistors,? Philips Research Reports, vol. 22 pp. 55?71, 1967.