1. Abraham, R., Marsden, J.E.: Foundations of Mechanics, 2nd edn, revised and enlarged. With the assistance of Tudor Ratiu and Richard Cushman. Benjamin/Cummings Publishing Co., Inc., Advanced Book Program, Reading (1978). Reprinted by Perseus Press, 1997 and AMS Chelsea, 2009
2. Adams, R.A., Fournier, J.J.F.: Sobolev Spaces, 2nd edn. Pure and Applied Mathematics, vol. 140. Elsevier/Academic, Amsterdam (2003)
3. Adler, M.: On a trace functional for formal pseudo differential operators and the symplectic structure of the Korteweg–de Vries type equations. Invent. Math. 50(3), 219–248 (1979)
4. Arnold, V.I.: Matematicheskie Metody Klassicheskoi Mekhaniki. Isdat. “Nauka” Moscow (1974, in Russian). English translation Mathematical Methods of Classical Mechanics, Graduate Texts in Mathematics, vol. 60. Springer, New York (1978)
5. Arnold, V.I., Avez, A.: Problèmes ergodiques de la mécanique classique. Monographies Internationales de Mathématiques Modernes, No. 9. Gauthier-Villars, Éditeur, Paris (1967). English translation Egodic Problems of Classical Mechanics. W.A. Benjamin, Inc., New York (1968)