1. J. C. Candy, and G. C. Ternes, (Eds.) Oversampling Delta-Sigma Data Converters: Theory, Design and Simulation, IEEE Press: New York, 1992.
2. C. Toumazou, J. B. Hughes, N. C. Battersby, (Eds.) Switched-Currents: an analogue technique for digital technology, IEE Circuits and Systems series 5, 1993.
3. S. R. Norsworthy, R. Schreier, and G. C. Ternes (Eds.): Delta-Sigma Data Converters: Theory, Design and Simulation, IEEE Press, 1997.
4. N. Tan, Switched-Current Design and Implementation of Oversampling A/D Converters, Kluwer, 1997.
5. S. J. Daubert, and D. Vallancourt, “A Transistor-Only Current-Mode IA Modulator”, IEEE J. Solid-State Circuits, Vol. 27, No. 5, pp. 821–830, May 1992.