1. Léger, P., Quapason. A New Low-Cost Vibrating Gyroscope, Symp. Gyro Technol., Stuttgart, 1996.
2. Foucault, L., Démonstration physique du mouvement de la Terre au moyen du pendule, C.R. Acad. Sci., 1851, vol. 32, pp. 135–138.
3. Zhuravlev, V.F., Theory of Hemispherical Resonator Gyros, Mechanika Tverdogo Tela. Izv. Rossiiskoi Akademii Nauk, 1993, no. 3, pp. 6–19.
4. Egarmin, N.E. and Yurin, V. E., Vvedenie v teoriyu vibratsionnykh giroskopov (Introduction to the Theory of Vibratory Gyroscopes), Moscow, 1993.
5. Lynch, D.D., Matthews, A., and Varty, G. T., Transfer of Sensor Technology from Oil-Drilling to Space Applications, 5th St. Petersburg Int. Conf. on Integrated Navigation Systems, St. Petersburg: Elektropribor, 1998.