共 9 条
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Integrability and symmetries for the Helmholtz oscillator with friction
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JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL,
2003, 36 (03)
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New aspects of integrability of force-free Duffing-van der Pol oscillator and related nonlinear systems
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JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL,
2004, 37 (16)
:4527-4534