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- [6] Perturbation to Lie symmetry and adiabatic invariants for Birkhoffian systems on time scales COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION, 2019, 75 : 251 - 261
- [7] Lie symmetrical perturbation and adiabatic invariants of generalized Hojman type for Lagrange systems CHINESE PHYSICS, 2007, 16 (11): : 3176 - 3181
- [8] Lie symmetrical perturbation and adiabatic invariants of generalized Hojman type for Lagrange systems Chin. Phys., 2007, 11 (3176-3181):