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Classical Hamiltonian Time Crystals -- General Theory And Simple Examples. (arXiv:2005.00586v1 [nlin.PS]) http://arxiv.org/abs/2005.00586
Classical Hamiltonian Time Crystals -- General Theory And Simple Examples. (arXiv:2005.00586v1 [nlin.PS]) http://arxiv.org/abs/2005.00586