1. R. Abraham and J. E. Marsden, Foundations of Mechanics, Amer. Math. Soc., Providence, RI, 2008.
2. B. Aebischer, M. Borer, M. Kälin, C. Leuenberger, and H. M. Bach, Symplectic Geometry, Birkhäuser, Basel, 1992, pp. 79–165.
3. V. I. Arnol’d, “A note on Weierstrass’ auxiliary theorem,” Funct. Anal. Its Appl., 1, No. 3, 173–179 (1967).
4. V.I. Arnold, Mathematical Methods of Classical Mechanics, Springer, Berlin, 1997.
5. I. Banakh, T. Banakh, A. Plichko, and A. Prykarpatsky, “On local convexity of nonlinear mappings between Banach spaces,” Cent. Eur. J. Math., 10, No. 6, 2264–2271 (2012).