1. Lectures on Quantum Mechanics (Belfer Graduate School of Science Monographs, series 2);Dirac,1964
2. On the integrability of symplectic Monge–Ampère equations;Doubrov;J. Geom. Phys.,2010
3. E.V. Ferapontov, B. Kruglikov, V. Novikov, Integrability of dispersionless Hirota type equations in 4D and the symplectic Monge–Ampère property, preprint arxiv:1707.08070.
4. Symplectic structures, their Bäcklund transformations and hereditary symmetries;Fuchssteiner;Physica,1981
5. Geometry of jet spaces and integrable systems;Krasil’shchik;J. Geom. Phys.,2011