1. Motion of a Solid Body with Cavities Containing a Viscous Liquid;Chernous'ko,1968
2. Theoretical Physics;Landau,1960
3. Asymptotic Methods in the Theory of Nonlinear Oscillations;Bogoliubov,1963
4. The Averaging Method in the Theory of Nonlinear Oscillatory Systems;Volosov,1971
5. Dynamics of a Body with Cavities Containing Liquid;Moiseev,1965