Existence of Periodic Solutions in the System of Nonlinear Oscillators with Power Potentials on a Two-Dimensional Lattice
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1972 ◽
Vol 40
(1)
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pp. 243-257
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2004 ◽
Vol 73
(2)
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pp. 358-363
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1965 ◽
Vol 13
(1)
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pp. 6-36
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1991 ◽
Vol 06
(39)
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pp. 3591-3600
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