1. Quadratic approximation in rotational dynamical equations;Roberson;Ing. Arch.,1969
2. J.V. Breakwell, R. Pringle Jr., Non-linear resonances affecting gravity-gradient stability, in: Astrodynamics, Gauthier-Villars, Paris, 1966, pp. 305–325.
3. Motion of a Satellite about its Center of Mass in the Gravitational Field;Beletsky,1975
4. On rotational motion of dynamically symmetric satellite in an elliptic orbit;Markeev;Cosmic Res.,1967
5. Resonant attitude instabilities for symmetric satellite in a circular orbit;Hitzl;Celest. Mech.,1972