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3. V. I. Arnold, Mathematical Methods of Classical Mechanics (Nauka, Moscow, 1974) [in Russian]; Second English Edition in: Graduate Texts inMathematics (Springer, New York-Berlin, 1989), Vol. 60.
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5. A. V. Bolsinov and A. T. Fomenko, Integrable Hamiltonian Systems, Vols. 1, 2 (Udmurtskii Universitet, Izhevsk, 1999; Chapman & Hall/CRC, Boca Raton, 2004).