1. A.B.Grebene, Bipolar and MOS Analog Integrated Circuit Design, Wiley: New York, 1984, pp. 556?559.
2. P.R.Gray and R.G.Meyer, Analysis and Design of Analog Integrated Circuits, 2nd ed., Wiley: New York, 1984, pp. 619?622.
3. R.S.Muller, R.T.Howe, S.D.Senturia, R.L.Smith, and R.M.White (Eds.), Sensors, IEEE Press: New York, 1991.
4. A.Nathan, I.A.McKay, I.M.Filanovsky, and H.P.Baltes, ?Design of a CMOS oscillator with magnetic-field frequency modulation,? IEEE J. Solid-State Circ., vol. SC-22, pp. 230?232, 1987.
5. H.Baltes, E.Charbon, M.Parameswaran, and A.M.Robinson, ?Humidity-sensitive oscillator fabricated in double poly CMOS technology,? Sensors and Actuators, vol. B1, pp. 441?445, 1990.