1. E. H. Nordholt, Design of High-Performance Negative-Feedback Amplifiers, Elsevier: Amsterdam, 1983.
2. C. Toumazou, F. J. Lidgey and D. G. Haigh (eds.), Analogue IC Design: The Current-Mode Approach, Peter Peregrinus: London, 1990.
3. C. Toumazou, J. B. Hughes and N. C. Battersby (eds.), Switched Currents: An Analogue Technique for Digital Technology, Peter Peregrinus: London, 1993.
4. C. Toumazou and N. C. Battersby, “Switched-transconductance techniques: A new approach for tuneable, precision analogue sampled-data signal processing,” in Proc. IEEE ISCAS, Chicago, May 1993.
5. E. A. Vittoz:“Low-power design: ways to approach the limits,” in Proc. IEEE ISSCC, February 1994, pp. 14–18.