Multiplicity of periodic solutions for a boundary eigenvalue problem
1993 ◽
Vol 41
(2)
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pp. 331-350
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2007 ◽
Vol 60
(3)
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pp. 319-336
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2010 ◽
Vol 50
(4)
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pp. 646-664
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1995 ◽
Vol 173
(1)
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pp. 141-167
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2014 ◽
Vol 20
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pp. 52-58
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