1. The Motion of an Artificial Satellite about to the Centre of Mass;Beletskii,1965
2. Special Functions in Celestial Mechanics;Aksenov Yep,1986
3. Resonance phenomena in the motion of a satellite about to the centre of mass;Chernous’ko;Zh Vychisl Mat Mat Fiz,1963
4. Theory of the resonant rotation of Mercury;Beletskii;Astron Zh,1975
5. Periodic rotations of a satellite in the plane of an elliptic orbit;Sarychev;Kosmich Issled,1979