An Approximate Periodic Solution of a Weakly Nonlinear Wave Equation
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2005 ◽
Vol 41
(10)
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pp. 1467-1475
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2020 ◽
Vol 13
(2)
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pp. 314-322
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1989 ◽
Vol 64
(2)
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pp. 543-556
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1980 ◽
Vol 85
(3-4)
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pp. 313-320
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