1. Anonymous, “Microelectromechanical Systems”, ME, October, 1996 p65.
2. “Mode Coupling Aspects in a Vibrating Gyroscope”;Ansel;Sens. & Actuators,1997
3. Fearnside K. et al, “The Mathematical Theory of Vibrating Angular Tachometers”, Inst. Of E. Eng. Monograph No. 264M, Nov. 1957.
4. “Comparative study of piezoelectric, piezoresistive, electrostatic, magnetic, and optical sensors”;Garcia;SPIE,1991
5. “Silicon micro-structuring technology”;Lang,1996