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70H15 Canonical and symplectic transformations (2 articles)

• Prato, Giuseppe Da; Tubaro, Luciano: Some results about dissipativity of Kolmogorov operators. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 4, pp. 685-699
• Klapka, Lubomír: Integrals and variational multipliers of second-order ordinary differential equations. (English). In: Slovák, Jan and Čadek, Martin (eds.): Proceedings of the 20th Winter School "Geometry and Physics". Circolo Matematico di Palermo, Palermo, 2001. pp. 129-131