Харвестер відкритої науки НАН України

Symmetry Properties of Autonomous Integrating Factors

von Moyo, S., Leach, P.G.L.
Veröffentlicht in Symmetry, Integrability and Geometry: Methods and Applications (2005)

Ermakov's Superintegrable Toy and Nonlocal Symmetries

von Leach, P.G.L., Karasu (Kalkanli), A., Nucci, M.C., Andriopoulos, K.
Veröffentlicht in Symmetry, Integrability and Geometry: Methods and Applications (2005)