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2. The theory of machine-motion control;N. E. Zhukovskii,1949
3. P. Appell, Traité de mécanique rationnelle (Gauthier-Villars, Paris, 1933), Vol. 2.
4. S. Targ, Theoretical Mechanics: a Short Course (Gordon and Breach, 1967).
5. A. M. Zhuravskii, Handbook on Elliptic Functions (USSR Acad. Sci., Moscow, 1941) [in Russian].